RTA Builder Wizard

Upload your SWEX JSON file to load your full monster collection, runes, and artifacts. If you don't have a JSON file yet, follow our SWEX JSON setup guide to export your game data in minutes. The builder instantly displays your wizard name, level, RTA rank, monster count, and rune inventory. Your account data stays private and is never shared.

The RTA wizard automatically detects your current RTA rank from the JSON data and uses it to tailor team recommendations to your bracket. It also identifies which runes belong to your RTA equipment pool (separate from Arena, Siege, and WGB), ensuring accurate optimization.

The RTA Builder offers three distinct build modes, each designed for a different level of automation and player expertise. Select the mode that matches how you want to approach team building.

In Semi Automatic mode, the Team Finder presents a paginated list of meta team compositions sourced from real RTA battle data. Each team card shows the monsters in the composition, a team score combining win rate, ban resilience, and usage data, and an approximate rune score showing how well you can rune that specific team from your current inventory.

Rank / tier filter

The rank filter auto-detects your RTA rank from your JSON data and shows team compositions relevant to your bracket. The available brackets are:

• Punisher+ — battles from Punisher I and up, the widest data recorded (players below Punisher start here)
• Guardian+ — battles from Guardian I and up
• G3+ / Legend — battles from Guardian III and Legend

This ensures you see teams that actually work at your level of play. A Legend-tier team composition might not work at Conqueror rank because the speed requirements and rune quality assumptions are vastly different. The filter adjusts automatically, but you can manually change it to explore teams from other brackets.

Season filter

The Season filter picks the battle data behind the recommendations. It opens on the current season (the site's default season); a new season also shows on its own while it collects its first 20,000 ranked battles, and the last two seasons together (e.g. S38 + S39) give more teams at high ranks. Older seasons aren't used, so you see teams that perform well in the current meta.

When a season has few battles at your rank, the finder adds the season before it and says so above the list.

Dual search bars

Two search bars let you filter team recommendations by specific monsters. Type a monster name in either search bar to find teams containing that unit. Use both search bars together (joined by AND logic) to find teams containing two specific monsters. For example, searching “Oliver” in the first bar and “Moore” in the second will show only compositions featuring both Oliver and Moore. Each search bar shows a live preview icon of the matched monster as you type.

Clustered teams & flex picker

Many team recommendations are clustered compositions — they show a core of 3 monsters that frequently appear together, plus a pool of flex picks that pair well with that core. When you click “Use Team” on a clustered team, a flex picker popup opens where you select 2 additional monsters from the flex pool to complete your 5-monster roster. Each flex pick shows its pick rate and win rate to help you make an informed choice.

Skip button

Don't want to use a meta team? Click the “SKIP” button in the top-right corner to bypass team selection entirely and go straight to the Build Team configuration. From there you can manually pick any 5 monsters from your collection. The optimizer works identically with custom compositions — full control over every monster slot, rune set, and stat threshold.

Monster ownership indicators

Each team card shows which monsters you actually own. Greyed-out or dimmed monster portraits indicate units missing from your collection, letting you quickly identify which compositions you can actually build. The approximate rune score also factors in your actual rune quality, so higher-scored teams are ones your rune inventory can better support.

In Full Automatic mode, the system builds your roster automatically. After analyzing your monster box and rune quality against the meta team database, it presents a tiered roster where each monster is assigned to a tier based on how well you can rune them and their role in the current meta.

Core units (tier 1)

Your absolute best RTA monsters. These are the units where your rune quality meets or exceeds the meta requirements. Core units form the foundation of your draft — they're the monsters you'll pick in almost every match. The system selects these based on which meta team compositions you can build at the highest level with your current rune inventory.

Support units (tier 2)

Complementary monsters that synergize with your core picks. These units may not have your absolute best runes, but they fill critical roles — immunity buffers, cleansers, secondary strippers, or defensive pivots — that make your core team function. Support units give you flexibility in the draft when your opponent bans one of your core picks.

Flex picks (tier 3)

Versatile counters and situational picks that round out your roster. These are monsters you can swap in to counter specific opponent strategies — a surprise last pick, a niche counter, or a monster that fills a gap when your preferred picks are banned. With a roster size of 8-10, the flex tier gives you maximum adaptability in the pick-and-ban phase.

Roster customization

The auto-generated roster isn't locked. You have full control to customize it:

• Drag and drop — move monsters between tiers to reclassify them (e.g., promote a flex pick to core)
• Swap monsters — click a monster to replace it with a different unit from your collection
• Remove monsters — remove a unit from the roster entirely to free up a slot
• Synergy score — the roster displays a total synergy score and average win rate multiplier that updates in real time as you make changes, so you can see how your edits affect overall team quality
• Search bar — search for specific monsters when swapping or adding units to any roster slot

This is the heart of the optimizer. Configure every aspect of rune optimization for each monster in your roster. The SWLens optimizer evaluates billions of rune permutations for each monster on our dedicated GPU-accelerated servers, delivering results in seconds rather than the minutes or hours a local optimizer would take. You can optimize from any device including tablets and mobile phones.

Each monster is displayed as a card. The card order from left to right defines turn order — the leftmost monster moves first. You can reorder monsters using the arrow buttons on each card, click the monster portrait to swap it, or use the red X to remove it.

Leader skills

If a monster has a leader skill, you can toggle it on or off with the leader skill button on their card. When enabled, the leader skill bonus (e.g., +33% Speed, +24% HP in Arena/RTA) is factored into the optimization — affecting both stat calculations and speed tuning. Only one monster per team can have their leader skill active.

Rune set selection

Choose your preferred main set (4-piece: Violent, Swift, Despair, Rage, Fatal, Vampire, Intangible, etc.) and offset sets (2-piece: Will, Nemesis, Focus, Blade, Guard, Energy, etc.). You can select multiple sets per slot — the optimizer will try all valid combinations and pick the best.

Pick a main set for every monster before you optimise: a card without one (after Clear, or Custom with no runes to copy) reads Choose a main set, and Optimise asks for it. The optimizer keeps to your main set — with your offset if you pick one, or with any other runes while the offset is Broken. Excluded sets are never used.

Each monster card shows the top 2 community preset builds automatically, sourced from the SWLens Bestiary data. Click a preset to instantly apply those rune set selections — great for quickly configuring popular builds like Violent/Will or Swift/Will.

Don't want a specific set? Use the Exclude Sets toggle to block unwanted rune sets entirely. If a rune belongs to an excluded set, the optimizer won't consider it.

Slot 2 / 4 / 6 main stats

Configure the primary stat for rune slots 2, 4, and 6. For each slot you can select multiple allowed main stats — the optimizer tests all valid combinations:

• Slot 2: SPD, HP%, ATK%, DEF%
• Slot 4: CR%, CD%, HP%, ATK%, DEF%
• Slot 6: HP%, ATK%, DEF%, ACC%, RES%

Build modes

Choose how the optimizer scores and ranks builds for each monster:

The AUTO mode is the Normal button on the cards and the recommended default for most monsters: it never goes more than 2 SPD below the fastest build and takes the most efficient runes there. Each card also starts in the mode that suits the monster, picked from its role and community builds (SWLens Bestiary): a Swift AOE ATB booster starts in SPD so it stays as fast as possible, a damage dealer (CD / ATK%) in DMG, a tanky build (HP% / DEF%) in EHP, and everything else in Normal.

Focus stats

Select specific stats to prioritize during optimization. For example, set Focus to CR + CD for a damage dealer to ensure the optimizer weights those stats higher. Focus stats determine which runes the optimizer considers “top candidates” for each slot — a critical factor when Search Depth is limited.

Minimum & maximum thresholds

Set minimum stat requirements (SPD, CR, RES, ACC) — the optimizer will discard any build that doesn't meet ALL minimums. Set maximum caps to prevent over-investment in stats with diminishing returns (e.g., max 100% CR to avoid wasting rolls on crit rate above cap).

Minimum and maximum thresholds appear as separate rows on each monster card. Min thresholds are displayed in the top row, max thresholds in the row below. Both accept values for SPD, CR, RES, and ACC.

Artifacts toggle

Toggle artifacts on or off per monster. When enabled, the optimizer selects the best artifacts from your RTA artifact inventory — not just runes. Artifact stats are factored into the final build calculation, including element-specific artifacts, type-specific bonuses, and sub-properties like additional damage by HP/ATK/DEF. When disabled, only runes are optimized.

Strict mode

The Strict Mode toggle controls how strictly the optimizer follows your configuration:

Use locked runes toggle

Controls whether runes assigned to monsters in your saved builds or locked in the Equipped RTA Runes tab are available for reassignment:

• OFF (default): Runes belonging to locked/saved-build monsters are excluded from the pool. This protects your existing builds.
• ON: All runes in your RTA inventory are available, including those on locked monsters. Maximum flexibility but may move runes from existing builds.

Search depth

The Search Depth slider (5-15) controls how many runes per focus stat per slot the optimizer considers. Higher depth evaluates more combinations for better builds but takes longer.

Save & load team configurations

Before optimizing, you can save your entire team configuration — including all monster selections, rune set choices, stat thresholds, SPD limits, build modes, and artifact toggles. Load a saved configuration anytime to pick up exactly where you left off. This is separate from saving optimized build results — configuration saves preserve your build settings so you can re-optimize after importing a new JSON with updated runes.

Click Optimise and pick Advanced optimise (the Optimise button asks which run you want; on phones it opens a sheet) to run the optimizer in a special mode that returns the top builds per monster instead of just the single best result. This opens a Build Table where you can compare and hand-pick builds for each monster in your team.

How it works

• Compare multiple builds side by side — see how each build distributes stats differently (e.g., one might prioritize HP while another maximizes damage)
• Pick the build you prefer — the optimizer presents options and you choose which stat distribution fits your playstyle
• Walk through each monster one by one — the build table steps through each monster, letting you confirm or change builds individually before moving to the next
• Go back to previous monsters — revisit and re-pick a build for any monster you've already confirmed

When to use it

Use Advanced Optimize when you want fine-grained control over the final result. For example, you might prefer a slightly tankier build over the highest-damage option, or want to see if a different rune set gives better stats. The Build Table shows SPD, HP, ATK, DEF, CR, CD, RES, ACC, efficiency, EHP, and estimated damage — everything you need for an informed choice.

Turn order is essential in RTA — your booster must move first, followed by your stripper, then your damage dealers in the correct order. In the RTA Builder you set it with each card's SPD limits:

• Minimum SPD — the speed a monster needs to move where it should
• Maximum SPD — a cap that keeps a follower behind the booster

The automatic speed tuner (a booster's ATB boost turned into each follower's exact speeds) and tick brackets aren't in the RTA Builder yet. They're in the Siege, WGB, Arena and General builders, and the free Speed Tune Calculator works out the speeds for any team.

Understanding speed ticks

Summoners War uses an internal tick-based speed system to determine turn order. Every monster's combat speed maps to a specific tick bracket (Tick 4 through Tick 10), which determines how many game ticks pass before that monster takes its turn. A monster in Tick 4 moves much faster than one in Tick 10.

Knowing a monster's tick bracket tells you the SPD at which it gains a turn — a good guide for the minimum you set on its card. The standalone Speed Tune Calculator shows the brackets and works out a team's speeds without running the optimizer.

Before you optimize, you can simulate what your runes would look like with max grinds applied. Choose between:

• Hero Grinds: Simulates hero-grade max grinds on all +12 or higher runes
• Legend Grinds: Simulates legend-grade max grinds for maximum potential

This lets you see what your builds could become with proper grinding — without spending a single grindstone. Simulated grinds are marked with an asterisk (*) in the results so you know which stats need actual grinding.

The optimizer doesn't just fail silently — it gives you detailed, actionable feedback when something goes wrong:

Build failed

If the optimizer can't find a valid rune build for one or more monsters, it shows a Build Failed dialog listing exactly which monsters failed and what rune sets were requested. This typically means your rune pool doesn't have enough quality runes matching the requested sets and thresholds. The fix: lower your minimum thresholds, add more allowed rune sets, or turn off Strict Mode.

Strict mode threshold failures

When Strict Mode is ON and the optimizer can't meet your stat requirements, it shows a detailed breakdown of which specific thresholds failed — for example, “SPD(281<300)” means the best achievable speed was 281 but you required 300. This tells you exactly which threshold to relax.

Turn order violations

When loading a saved build with locked monsters, the optimizer checks if the intended turn order is still achievable. If a locked monster's speed conflicts with the current team configuration, you'll see a Turn Order Violation warning with options to proceed, re-lock, or cancel.

Empty slot warnings

If you try to optimize with empty monster slots, the optimizer warns you about the unfilled positions. You can proceed with fewer than 5 monsters, but the warning ensures you didn't accidentally skip a slot.

After optimization, the builder displays the best rune assignment for every monster in your roster. For each monster you'll see:

• Final Stats: HP, ATK, DEF, SPD, CR, CD, RES, ACC
• Efficiency %: How well the runes are rolled
• EHP Score: Effective HP (survivability metric)
• DMG Score: Damage potential metric
• Actual Speed: Combat speed with leader skill factored in
• Rune Assignments: All 6 rune slots + artifacts with set bonuses
• Threshold Indicators: Green checks or red warnings for each stat target
• Simulated Grinds: Asterisk (*) marks on stats that exceed current grind values

Rune location tracking

Each assigned rune shows its current location — which monster currently has it equipped and in which rune box. Runes are displayed using the correct RTA equipment box (separate from Siege/Arena/WGB), so you know exactly which runes to move in-game. If a rune is on another monster, you'll see the previous owner's name.

Artifact optimization

When artifacts are enabled, the optimizer selects the best artifacts for each monster from your RTA artifact inventory — element-specific artifacts, type-specific bonuses, and sub-properties like additional damage, CRIT DMG bonuses, and conditional effects are all factored in.

After optimization

Once results are displayed, you have several options:

• Save your build — save to local storage and cloud for future reference
• Lock specific units — lock individual monsters to preserve their assigned runes
• Return to configuration — go back to adjust thresholds, rune sets, or speed tuning and re-optimize
• Re-optimize — run the optimizer again with the same or modified settings

Saved Builds Tab

Save your optimized builds locally or to the cloud. The Saved Builds tab lets you:

• Save builds with custom names
• Load previous builds from local storage or cloud
• Lock monsters to preserve their rune assignments — locked runes are excluded from future optimizations
• Re-optimize — the system remembers your exact configuration (rune sets, thresholds, speed tune, build modes) and re-runs with your current rune inventory
• Cloud sync — access your builds from any device via your SWLens account

Equipped RTA Runes tab

The Equipped RTA Runes tab gives you a complete overview of your RTA rune inventory. See every monster with RTA-assigned runes, their full stats, set bonuses, and efficiency ratings. From this tab you can:

• View all RTA-equipped runes and artifacts — expand any monster to see every rune slot, sub-stats, and grind values
• Lock and unlock units — lock monsters to protect their rune assignments during optimization
• Assess rune quality — efficiency percentages and set bonuses at a glance

The RTA rune pool is completely separate from Arena, Siege, and WGB pools. The builder automatically parses your game data to identify which runes belong to your RTA equipment pool, ensuring your other content builds are never affected.

Locking units

When you lock a unit (from either Saved Builds or Equipped RTA Runes), its runes become reserved. The optimizer won't reassign locked runes to other monsters. This is essential for maintaining your best builds while optimizing remaining roster slots. Both tabs contribute to the locked rune pool — a monster locked in the Equipped tab is treated identically to one locked in Saved Builds.

The RTA Builder Wizard uses a token system for optimization runs. Free-tier users receive a limited number of optimization tokens. Subscribed users get unlimited optimizations. Each optimization run (clicking the Optimize button) consumes one token.

If you're on the free tier and have used your token, you can still browse teams, configure builds, and use all the planning features — but running the actual optimization requires either a subscription or an available token. Saving builds after optimization is also gated to ensure you save your results before the session ends.