Darksteel Battalion

Indestructible, First Strike, Deathtouch,
Trample, Hexproof
Darksteel Battalion enters with three charge
counters on it and cannot have additional charge counters placed on it.
At the beginning of your upkeep, you may
pay 5 life. If you don't, remove a charge counter
from Darksteel Battalion.
If there are no charge counters on Darksteel Battalion, it gets -5/-0 and loses all abilities.