Boog Doog's Birthday Cake

Sunburst (This comes into play with a charge
counter on it for each color of mana used to pay
its cost.)
{2}{t}: Sacrifice Birthday Cake: Until end of turn,
creatures your opponent controls get -X/-X.
If you control The Boog Doog, your creatures
get +X/+X, where X equals the number of
charge counters on Birthday Cake.
Now you're nine. Soon, ten's in reach. Warm clothes
here, after the beach.