Soma, Nature's Blessing

Commander Ninjitsu {b}{u} ({b}{u}, Return an
unblocked attacker you control to hand: Put this
card onto the battlefield from your hand or the
command zone tapped and attacking.)

Deathtouch, Reach

Whenever a Ninja you control deals combat damage
to a player, you may pay {b}{g}. If you do, return
target permanent from your graveyard to your hand.