Archfiend of Evolution

Evolve (Whenever a creature enters the battlefield
under your control, if that creature has greater power
or toughness than this creature, put a +1/+1 counter
on this creature.)
Graft 2 (This creature enters the battlefield with
two +1/+1 counters on it. Whenever another
creature enters the battlefield, you may move a
+1/+1 counter from this creature onto it.)
{2}{g}{u}, Adapt 2 (If this creature has no +1/+1
counters on it, put two +1/+1 counters on it.)