Lucy, the First

Flying, Indestructible, Vigilance
Whenever another creature you control deals combat damage to an opponent put that many +1/+1 counters onto that creature.
Whenever Lucy attacks, creatures you control with +1/+1 counters on them gain lifelink until end of turn, then if you control a creature with power 13 or greater, Lucy gets +5/+5 and gains trample until end of turn.