Acorn of the Golden Phoenix

{t}{3}: Make 4 5/5 squirrel tokens. Once all
five have been defeated, make four more.
After those are defeated, make two more.
Finally after those are defeated create a
King Squirrel token that is a 8/8 creature.
Sacrifice this artifact when it is used the
second time.
"Ahh look at the squirrels...
Look at the BIG SQUIRREL. RUN!!!!"
-Last words of Oleic the Brave Forest Master