Consciousness Shuffle

Target player you're attacking shuffles their hand
and nonland permanents into a face-down pile.
During the declare blockers step, that player can
choose from their face-down cards to block with.
During the combat damage step, the cards are
flipped over. Creatures and planeswalkers then
block their attackers, instant and sorceries are
cast immediately, and noncreature permanents
remain. Put the other face-down cards in their
owner's hand. They create 3 treasure tokens.