Aang- The Last Airbender

When The Last Airbender enters, draw a card.

Landfall — Whenever a land you control enters, you gain 4 life if this is the first time this ability has resolved this turn. If it's the second time, add {r}{g}{w}{u}. If it's the third time, Aang deals 4 damage to each opponent and each planeswalker you don't control.

(Omnath, Locus of Creation)