Micah, Deranged Druid

Trample
Landfall — Whenever a land enters the
battlefield under your control, flip a coin. If you
win the flip, Micah, Deranged Druid deals 2
damage to an opponent at random. Otherwise, it
deals 1 damage to each player.
You may play an additional land each turn.
As the war for Mirrodin wears on, everyone begins
to look like an enemy.