15 cards killed
15_CARDS_KILLED18.7%

Achievements and their recorded unlock rates.
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15_CARDS_KILLED50_CARDS_USEDWIN_150_GAMESLOSE_FASTALL_OFFLINE_LEVELS_COMPLETE800_WIND_SPENT800_WATER_SPENT800_STONE_SPENT800_FIRE_SPENT1000_WIND_EARNED1000_WATER_EARNED1000_STONE_EARNED1000_FIRE_EARNED150_GEN_UPGRADES10_GEN_UPGRADES600_CARDS_KILLED100_CARDS_KILLED500_CARDS_USED300_ABILITIES_USED20_ABILITIES_USEDWIN_10_GAMESWIN_1_GAMEFIRST_ONLINE_WINTUTORIAL_COMPLETE