Sonic the Hedgehog

Flash, Haste, First Strike
{u}: Place a Chaos Emerald counter on Sonic, do
this only once per turn.
Remove 7 Chaos Emerald counters from Sonic:
Super Sonic - Until your next upkeep, Sonics
base power & toughness becomes 10/10 and he
gains flying, indestructible, and trample.