Study

Study is a Watcher uncommon power that places a Lesson Learned card on top of your draw pile at the end of every turn. Lesson Learned is a 2-cost attack that deals 10 damage and, if the target dies, upgrades a random card in your deck before Exhausting. This means every turn you have Study active, you draw Lesson Learned as your first card next turn, providing a consistent kill-on-sight attack. In fights with multiple enemies, each kill from Lesson Learned upgrades another card, compounding in long combats.

Study creates a powerful card upgrade loop in multi-enemy encounters: each Lesson Learned that kills its target upgrades a random deck card, gradually improving every card in your deck. In boss fights, even without kills, Lesson Learned still deals 10 damage for 2 energy and sets up the next turn's guaranteed top-deck. The 2-energy cost of Study is offset by the consistent card generation value. Upgraded, Study gains Innate (always in starting hand) and generates Lesson Learned+ (which deals 16 damage), making the kills more reliable and the upgrades more frequent.