Silent-Blade Oni [Planechase Anthology] Bird Egg and lifelink

and lifelink

choose a hand attached to an opponent's arm

Set: Fifth Dawn Type: Artifact Creature — Construct Rarity: Rare Cost: {4} No more than one creature can attack each combat

you notice how the joints fit

Silent-Blade Oni [Planechase Anthology] Bird Egg and lifelinkSet: 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.