Trok, Forest Shaman

{g}{g}{t} Add X to your mana pool, where X is the number of creatures you control.
Landfall whenever a land enters the battlefield under your control put a 1/1 green Tree Guard token onto the battlefield.
{g} Sacrifice 6 Tree Guard tokens search your deck and graveyard for Omnath, Locus of Mana and put it onto the battlefield tapped.