Omnath, Locus of Entirety

Landfall - Whenever a land enters the battlefield under your control for the ____ this turn,
First time- Draw 1 card
Second time - Gain 2 life
Third time - Deal 3 damage to any target
Fourth time - Add 4 mana in any combination of colors
Fifth time - Deal 5 damage to each opponent and each Planeswalker you don't control