Ink-Eyes, Servant of Oni is a rare Legendary Creature — Rat Ninja card from Betrayers of Kamigawa (BOK), collector number 71. Current market price: $11.47 (foil $65.53), TCGplayer market prices via Scryfall.
Ninjutsu {3}{B}{B} ({3}{B}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever Ink-Eyes deals combat damage to a player, you may put target creature card from that player's graveyard onto the battlefield under your control. {1}{B}: Regenerate Ink-Eyes.