Bloodchief Ascension - Avatar: The Last Airbender Eternal #23

Bloodchief Ascension

Set: Avatar: The Last Airbender Eternal (TLE)
Collector Number: 23
Type: Enchantment
Rarity: Mythic
Mana Value: 1.0

At the beginning of each end step, if an opponent lost 2 or more life this turn, you may put a quest counter on this enchantment. (Damage causes loss of life.)
Whenever a card is put into an opponent's graveyard from anywhere, if this enchantment has three or more quest counters on it, you may have that player lose 2 life. If you do, you gain 2 life.