Higure, the Still Wind

Ninjutsu [2][U][U] ([2][U][U], Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Higure, the Still Wind deals combat damage to a player, you may search your library for a Ninja card, reveal it, and put it into your hand. If you do, shuffle your library.

[2]: Target Ninja creature is unblockable this turn.