Whimsicott

Evolution {1}{g} (If you cast this spell for its
evolution cost, put it over target creature named
"Cottonee" you own. They evolve into the creature
on top plus all abilities from under it.)
Flash, flying, grass, fairy
{2}{g}, {t}: If this creature has fewer than six
+0/+1 counters on it, put three +0/+1
counters on it.