Jennika, The 5th Turtle

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.)

Flying

When Thousand-Faced Shadow enters the battlefield from your hand, it it's attacking, create a token that's a copy of another target attacking creature. The token enters the battlefield tapped and attacking.