The almanac

Every rate in the game. The server rolls everything, with the same odds for every family and every player, and these numbers come straight from the rules it runs.

Packs

A pack holds 5 cards, rolled when you open it. A legendary roll gives the pack family's legendary; every other card is one of the family's 8 regular species, picked evenly.

CardCommonRareEpicLegendary
Slots 1 to 470%22%7%1%
Slot 50%75%21%4%
FinishChance per card
Shiny1 in 100
Shiny during Shiny Hour (18:00 to 19:00 UTC on Shiny Hour days)1 in 25
Foil (every legendary and Mythic is foil)1 in 16
A trinket, like a tiny hat or a bow5%
The species' own pattern80%

Wild encounters

Once Claude's main turn has run 20 seconds, every further 15 seconds has a 30% chance that something rustles, at most once every 8 minutes. Your first encounter comes at 20 seconds.

Wild teamChance
1 creature20%
2 creatures35%
3 creatures45%
Each wild creature comes fromChance
Your arena's family50%
Today's featured species15%
Any family35%
Its rarityChance
Common78%
Rare18%
Epic4%
The lead creatureChance
A Mythic, never seen before and never again1 in 40
Otherwise, this week's roaming legendary1 in 100
After 4 hours away: rare81.8%
After 4 hours away: epic18.2%

Wild creatures sit within 1 level of your team's average.

After a battle

ResultSparksXP each
Win10 (duel 12)20
Draw512
Loss38
RollChance
Catch after a wild win60%
Catch on Wild Bloom days80%
Catch after your first wild win ever100%
A bounty card after a duel win20%
A critical hit1 in 16
A critical hit with Lucky Star1 in 8

You never lose a card in battle. Your first win each day adds a pack, and every 3rd win in a row adds a streak pack. A Perfect special, pressed on the round it fires, hits 1.3x as hard.

Every card is one of a kind

Gene or traitRange
Each of 4 genes0 to 15
What a gene does to its stat-12% to +12%
Traits on common and rare cards1
Traits on epic and legendary cards2
Hue shift from the speciesup to 18 degrees

Fusion, crafting and recycling

ActionSparks
Fuse two cards40 (20 on Fusion Fair)
Buy a pack150
Craft a common of this season50
Craft a rare of this season200
Craft an epic of this season800
Craft a legendary of this season3200
Recycle a common4
Recycle a rare15
Recycle an epic60
Recycle a legendary250

A fusion takes the higher parent's rarity, with a 15% chance of one tier up (never into legendary). Recycling pays 2x for shiny, 1.5x for foil and 2x again for a Mythic.

Packs over time

A pack charges after every 50 minutes with Claude Code open, idle time included, at least 45 minutes apart. You can hold 12 unopened packs; open some to make room. There are no daily limits on battles, catches or packs.

The daily rule

RuleWhat it does
Haiku DayHaiku creatures get +20% speed
Sonnet DaySonnet creatures heal 4% each round
Opus DayOpus creatures get +15% attack
Fable DayFable specials are ready after 1 charge
Topsy-TurvyThe type cycle runs backwards
Glass DayCritical hits deal double
Long DayBattles last up to 30 rounds
Gentle DayAll damage is 15% softer
Wild BloomCatch chance is 80%
Shiny HourFrom 18:00 to 19:00 UTC, shinies are 1 in 25
Fusion FairFusion costs 20 sparks
Calm DayA quiet day in the meadow

Families

FamilyBeats
HaikuFable
SonnetHaiku
OpusSonnet
FableOpus

A family hits 1.5x as hard against the one it beats, and 0.67x against the one that beats it.