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Lesson LearnedDeal 10 damage.
If FatalFatalTriggers whenever this card kills a non-minion enemy., UpgradeUpgradeUpgrading cards makes them more powerful. Cards can only be upgraded once. a random card in your deck.
ExhaustExhaustRemoved until end of combat..Attack2
Exhaust
Removed until end of combat.
Fatal
Triggers whenever this card kills a non-minionminionMinions abandon combat without their leader. enemy.
Upgrade
Upgrading cards makes them more powerful. Cards can only be upgradedupgradedUpgrading cards makes them more powerful. Cards can only be upgraded once. once.

Attack · Rare · The Watcher · Cost 2

Lesson Learned

Deal 10 damage.
If FatalFatalTriggers whenever this card kills a non-minion enemy., UpgradeUpgradeUpgrading cards makes them more powerful. Cards can only be upgraded once. a random card in your deck.
ExhaustExhaustRemoved until end of combat..

Upgraded

Deal 13 damage.
If FatalFatalTriggers whenever this card kills a non-minion enemy., UpgradeUpgradeUpgrading cards makes them more powerful. Cards can only be upgraded once. a random card in your deck.
ExhaustExhaustRemoved until end of combat..

Merchant price

StS1
Shop band
135–165Gold
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Lesson Learned · Cards · Slay the Spire · SlaySpireDB