Gezik, Titan of Elements

When this card enters the battlefield, return all
lands in the graveyard to their owners battlefield
tapped.
Trample, Reach, Indestructible
{2},{t}; Return up to 4 basic lands from your graveyard to your battlefield tapped
{t}; Produce {x} green, blue, or red mana, where {x} is the amount of elementals you control