Elmo The Immortal

+3: Draw two cards, tap two creatures opponents control, exile one card from an opponents graveyard. they can can play that card for double its mana
0: Exert target creature, they can counter this by tapping two other creatures.
-20: Steal every opponent's boards (Creatures, lands, artifacts and Library) and add it to your board (Creatures Tapped). They now use their Graveyard