The Void

As an additional cost to cast The Void:
Reduce your life total to 3, Take 8 poison counters,
Take 20 commander damage
Exile all cards from the game except player's
hands, basic lands, and an artifact (Can't be an
artifact land or creature) of their choice
{x}: You don't draw cards. Opponent's creatures
Keep their abilities but become a X/X
asteroid token