Earthen Amalgam

When Earthen Amalgam enters the battlefield, put X +1/+1 counters on it.
{r}: If Earthen Amalgam is not a creature, put a +1/+1 counter on it and it becomes a 1/1 Elemental Construct creature with Trample until end of turn. If it's power is 5 or more, it gains Haste and is a creature permanently.
Ancient rage lurks in these crumbling mountains.