Arboreal Vigilante

Arboreal Vigilante gets +1/+1 for each Elemental creature you control.
Landfall - Whenever a land enters the battlefield under your control, you may pay {1}{g}. If you do, create a 2/2 green Elemental creature token.
{3}{g}{g}: Reveal the top card of your library. If it's
a land card, put it onto the battlefield.