Silent-Blade Oni [Planechase Anthology] Rare yet no one could predict

yet no one could predict that this vicious crossbreed would unravel the secret of steel

Set: Arabian Nights Type: Artifact Rarity: Rare Cost: {6} {2}: Choose one —

Set: Zendikar Expeditions Type: Land — Mountain Forest Rarity: Mythic ({T}: Add {R} or {G}

"I abandoned my dream of a squadron of griffin-riders when the cost proved too high

It has "Sacrifice this creature: Add {C}

Silent-Blade Oni [Planechase Anthology] Rare yet no one could predictSet: Planechase Anthology Type: Creature Demon Ninja Rarity: Rare Cost: {3}{U}{U}{B}{B} Ninjutsu {4}{U}{B} ({4}{U}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever Silent Blade Oni deals combat damage to a player, look at that player's hand. You may cast a spell from among those cards without paying its mana cost.