Talulah, Deathless Black Snake

At the beginning of your upkeep, each creature
you control gains +1/+1.
Whenever Talulah deals damage to a creature
who doesn't share a color with it, double that
damage.
Whenever Talulah dies, deal 10 damage to each
creature you don't control. If a creature were to
die this way, exile it instead of putting it in it's
owner's graveyard.