Skeleton King, Ostarion

Whenever Skeleton King, Ostarion dies, creatures your opponent control gets -5/-5, regenerate Skeleton King, Ostarion.
Whenever Skeleton King, Ostation attacks, if you have less than 20 life, Skeleton King, Ostarion gets Double Strike and creatures you control gain lifelink.
"I don't die, but when I do, I don't"
- Ostarion