Corwin, Prince of the Spear

Hexproof

Whenever Corwin, Prince of the Spear attacks, put
a 5/5 white Shadow creature token with flying on to the battlefield tapped and attacking. Exile that token
at the end of combat.

{2}{b}: Separate all permanents target player controls into two piles. That player sacrifices all permanents in the pile of his or her choice.