Oathsworn Adept

Ninjutsu {1}{b}{g} ({b}{g}, Return an unblocked
attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever Oathsworn Adept enters the
battlefield attacking or attacks, defending player discards a card.
Raid—At the beginning of your end step, if you attacked with a creature this turn, put a +1/+1
counter on Oathsworn Adept.