Mephiston, Lord of Death

If a creature dying causes a triggered ability
of a permanent you control to trigger, that
ability triggers an additional time.

Creature tokens you control have vigilance and lifelink.

"I once was Calistarius. He has been dead for many
years. I stand in his place, with death in my right
hand, darkness in my left, and I would know who
this is who bears the name Mephiston."