Dramatic Reversal

At the beginning of your end step, untap all nonland permanents you control.

Tap X target nonland permanents.

Amass Zombies 1. (Put a +1/+1 counter on an Army you control. It's also a Zombie. If you don't control an Army, create a 0/0 black Zombie Army creature token first.)

You and permanents you control gain hexproof until end of turn. (You and they can't be the targets of spells or abilities your opponents control.)

Return target nonland permanent you don't control to its owner's hand.

Overload (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Cleave (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.)

Return target nonland permanent [you control] to its owner's hand.

Counter target spell that targets a permanent you control.