Vazkuri, Elder Beast Spirit

Hexproof, Lifelink
Vazkuri comes into play with double X +1/+1 counters on it.
If Vazkuri has twelve or more +1/+1 counters on it, it has Trample.
{p/g}{p/g}{p/g}{p/g}: Put Y +1/+1 counters on Vazkuri,
where Y is its power.