Alexandra

Lifelink, Deathtouch
{w}{b},{t}: discard a card in your hand.
If that card was a creature you may create a
black 1/3 Aetherghoul with deathtouch & defender.

If that card was an instant or sorcery you may create a white 1/1 Aetherspirit with lifelink & whenever you gain life you may put a +1/+1 counter on any other creature.