FORTRESS TOOLS

THE ANVIL
CALCULATOR✦

Plan your next Bleed banner. Estimate how many Anvils you need, calculate your chance of reaching a star target, and track your pulls — all in one place.

◆ LIMITED MYTHIC◇ 5,000 SIMULATIONS◆ BUILD 3◈ BUILT FOR FoS

YOUR PLAN

Forge your next champion

Your settings save on this device

Set your goal

Choose a champion, your current rank and where you want to go.

LIMITED MYTHIC CHAMPION

CURRENT STAR RANK

TARGET STAR RANK

STAR PROGRESSIONNot owned → Red 1★

— shards required

ANVILS AVAILABLE

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EXTRA CHAMPION SHARDSUnused shards toward the next star

Current pull progress

Use the pity counters displayed in your Bleed banner.

MYTHIC PITY ⓘ

NON-FEATURED STREAK ⓘ

⚙ Advanced assumptions Adjust game rates and rewards

MYTHIC BASE CHANCE (%)

HARD PITY (PULLS)

FEATURED BASE CHANCE PER MYTHIC (%)

SHARDS PER FEATURED COPY

NON-FEATURED MYTHICS ALREADY PULLED ON THIS BANNERUsed to track the first six guaranteed bonus shard rewards on this banner.

Include bonus shards from non-featured Mythic pulls

Regular Bleed banner defaults: 3% base Mythic chance, 50-pull pity; 5% featured chance on each Mythic, guaranteed by the fourth. The higher published 3.84% and 26.9% rates already include pity/guarantees — do not enter those as base rates. First six non-featured Mythics award 2/3/5 bonus shards at 60/35/5 odds, then each later miss has a 33% chance. Featured hard pity occurs after three non-featured Mythics. Adjust these values if your current banner shows different rules.

Calculator initializing (build 3). If this message stays visible, please try a hard refresh or another browser.

SIMULATION RESULTS

Sinestro · Target: Red 1★

● ESTIMATED

EXPECTED AVERAGE—anvils to target

MEDIAN COST—50% of trials finish by this

90TH PERCENTILE—90% of trials finish by this

CHANCE TO REACH YOUR GOAL

With 1,000 anvils available

—

Calculating outcomes…

SIMULATED COST DISTRIBUTION5,000 trials

OPTIMISTIC · 10%—

MEDIAN · 50%—

CAUTIOUS · 90%—

ⓘ Estimates are simulations, not guarantees. Bonus-shard rules and probabilities can change. The displayed 90% cost is a percentile, not a maximum.

KEEP YOUR PLAN UPDATED

Log a pulling session

Record what actually happened. We'll update your available Anvils, shards and pity.

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ANVILS SPENT

CHAMPION SHARDS EARNED

NON-FEATURED MYTHICS PULLED IN THIS SESSIONTracks which misses are eligible for bonus shards; include any bonus shards in the earned total above.

PITY AFTER SESSION

NON-FEATURED STREAK AFTER

Enter the pity and streak shown in-game after pulling; the order of pulls cannot be inferred safely from totals alone. Add all featured and bonus shards earned.

UNDER THE ICE

How does the math work?

Each simulated pull has a chance to be Mythic, with a guaranteed Mythic at the pity cap. Mythics can be the featured Limited Mythic; the next is guaranteed after three misses. Shards increase your star progress. Repeat the experiment 5,000 times to estimate a cost distribution and your odds of staying inside budget.

Read the game mechanics ↗

Unofficial community planning tool. Independent FoS implementation; not affiliated with DCDL Companion or the game's publishers. Figures are estimates and should be confirmed against the current in-game banner. Personal inputs are saved locally in your browser, not to the FoS server.