Tezuka, Mentor of Deception

Creature cards in your hand have Ninjutsu X,
where X is their converted mana cost. (Return an unblocked attacker you control to hand: Put this card
onto the battlefield from your hand tapped and
attacking.)
{1}{g/u}, Return a creature you control to its owner's
hand: Tezuka gains Hexproof until end of turn.