The Behemoth War Machine

Begin the game with this card revealed.
You can only control one creature under your
control at any given time.
You begin the game with an 8/8 colorless artifact
Tank token with indestructible, defender,
deathtouch, reach and can block any number of
creatures. It has "Enrage-Whenever this
creature is dealt damage, each opponent sacrifices
a permanent." Control of it cannot switch.
Win: Eliminate all players.