Gabite

Haste, wither
{g}{r}{b}{t}: Gabite phases out until your
next turn. When it phases back in, it deals
damage equal to its power to any target.
Whenever Gabite defeats a creature, put a level
counter on it. Then, if it has at least 10 level
counters on it, you may evolve it at any time into
Garchomp.