At the beginning of your upkeep, you may sacrifice a Forest. If you sacrifice a snow Forest this way, this creature gains trample until end of turn. If you don't sacrifice a Forest, sacrifice this creature and it deals 7 damage to you.
: This creature deals damage equal to its power to another target creature. That creature deals damage equal to its power to this creature.

Defender, trample
When this creature blocks, it loses defender.

Flying
Whenever a creature dealt damage by this creature this turn dies, put that card onto the battlefield under your control at the beginning of the next end step. Sacrifice the creature when you lose control of this creature.

Flying
Whenever a creature dealt damage by Baron Sengir this turn dies, put a +2/+2 counter on Baron Sengir.
: Regenerate another target Vampire.

Trample
This creature enters tapped.
Cumulative upkeep—Sacrifice a land. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)