Zainkahs, Traveler's Bane

Trample
Zainkahs, Traveler's Bane enters the battlefield with X +1/+1 counters on it where X is equal to the number of cards in your hand.
{2}{g}{g}{g},{t}: Put X +1/+1 counters on Zainkahs where X is equal to the total cards in your hand.