Dra-Karn, Silva Hydra

Can not be countered, Hexproof
Dra-Karn enters the battlefield with four +1/+1 counters on it.
If Dra-Karn has ten or more +1/+1 counters on it, it has Trample.
{2}{p/g}{p/g}: Put X +1/+1 counters on Dra-Karn, where X is its power.