Anakin Skywalker

First strike, haste
Whenever another creature you control dies, put
a +1/+1 counter on Anakin Skywalker.
At the beginning of your upkeep, sacrifice a creature. If you can't, you lose 3 life. Then, if there are three or more +1/+1 counters on
Anakin Skywalker, transform Anakin Skywalker.