Killf Dannar, the Almighty

Flying, Trample
Whenever a creature you control attacks and
at the beginning of your upkeep, Kilf Dannar deals 15 damage to target creature.
Whenever a creature is dealt damage, put a +1/+1 counter on Kilf Dannar for each 1 damage dealt
to that creature.
{b}{r}: you gain 1 life.