The Storm's Shadow

Double Strike Reach Deathtouch Lifelink Trample Living Weapon
The Storm's Shadow can't be blocked.

The Storm's Shadow enters with three +1/+1 counters on it.
At the beginning of your upkeep, you may sacrifice a creature. If you do, put a +1/+1
counter on The Storm's Shadow. If you
don't, remove a +1/+1 counter from The
Storm's Shadow.