Balduvian Horde (Worlds) [World Championship Promos] Hydra Set: Betrayers of Kamigawa Type:

Set: Betrayers of Kamigawa Type: Legendary Artifact — Equipment Rarity: Rare Cost: {2} Whenever equipped creature deals combat damage

then puts those cards into their graveyard

put it on top of its owner's library instead of into that player's graveyard

return it to the battlefield under your control at the beginning of the next end step

I knew exactly what to do

Balduvian Horde (Worlds) [World Championship Promos] Hydra Set: Betrayers of Kamigawa Type:Set: World Championship Promos Type: Creature Human Barbarian Rarity: Rare Cost: {2}{R}{R} When Balduvian Horde enters the battlefield, sacrifice it unless you discard a card at random.