Treasure Keeper [Masters 25] Planar Chaos Set: Core Set 2019 Type:

Set: Core Set 2019 Type: Enchantment Rarity: Rare Cost: {2}{W}{W} Whenever a creature or planeswalker you control dies

where X is the total power of the creatures sacrificed this way

Set: Magic 2011 Type: Sorcery Rarity: Common Cost: {2}{B} Destroy target tapped creature

Dragonslayers learned to keep silent about their deeds after seeing the terrible vengeance wrought by Kolaghan and her brood

Treasure Keeper [Masters 25] Planar Chaos Set: Core Set 2019 Type:Set: Masters 25 Type: Artifact Creature Construct Rarity: Uncommon Cost: {4} When Treasure Keeper dies, reveal cards from the top of your library until you reveal a nonland card with mana value 3 or less. You may cast that card without paying its mana cost. Put all revealed cards not cast this way on the bottom of your library in a random order.