Cold-Glint-Treader of Oni

Ninjitsu {1}{w/b}{w/b} ({1}{w/b}{w/b}, Return an unblocked
attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
When Cold-Glint-Treader of Oni deals combat
damage to a player, exile up to that many
instant or sorcery cards in that players graveyard
that target a single permanent. Copy those spells
for each creature those spells could target.
Each copy of each spell targets a different one
of those creatures.