Goatifer, the Giver

At the beginning of the game if Goatifer, the Giver is your commander each opponent starts the game with a 2/2 red goat creature token with "this creature can't attack players whose commander is Goatifer, the Giver" on the battlefield.
Goatifer, the Giver gets +1/+1 for every goat controlled by your opponents.
Firststrike, Lifelink.