Goldstone Colossus

Trample, Indestructible
When Goldstone Colossus enters the battlefield create X colorless goldstone artifact tokens.(X cannot be 0 )
Whenever Goldstone Colossus attacks, you may sacrifice X goldstone tokens, if you do, put X +1/+1 counters on Goldstone Colossus.
{6}:Create a colorless goldstone artifact token.