Lord Harkon, Cruel Patriarch

Flying, Lifelink
Whenever a Human deals damage to you or a
Vampire you control, destroy it.
When Harkon attacks you may discard a card, if
you do, draw a card. Harkon then gets +X/+X
until end of turn, where X is the mana value of
the discarded card.
Sacrifice another creature, {t}: Draw a card, and
gain 2 life.