The Witch of Izalith

Hexproof, Lifelink, Trample.
{t},{r}{r}{r}{x}: Each Creature, and each player
besides you, takes X damage.
{t},{r}{b}: Target creature gets a +1/+1 counter
and becomes a Demon in addition to
it's other types.
"The Witch and Her daughter's of Chaos weaved
great firestorms, and burned the Archtrees."