Nunu and Willump

Menace
Whenever Nunu attack, you may sacrifice another creature.When you do put +1/+1 counters on Nunu
equal to the power
of the sacrificed creature.Then choose one—
•Create X 1/1 white flying Snowball Barrage tokens
tapped and attacking.
•Create a X/1 white trample Biggest Snowball Ever
token tapped and attacking.
End of combat remove X +1/+1 counters
from Nunu and sacrifice created tokens.