Ink-Eyes, Servant of Oni is a mythic Legendary Creature — Rat Ninja card from From the Vault: Twenty (V13), collector number 13. Current market price: — (foil $16.51), 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.