Navigator's Ruin | 63 | Ixalan

Set: Ixalan
Rarity: U
#: 63
Creature Type or Sub Type: Enchantment
Rules Text Contains: Raid — At the beginning of your end step, if you attacked with a creature this turn, target opponent puts the top four cards of his or her library into his or her graveyard.
Flavor: "You won't be needing this. Or this. Or these . . ."