Mana Beast

When Mana Beast enters the battlefield, draw a
card.

Landfall — Whenever a land enters the battlefield
under your control, 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}{g}{w}{u}. If it's the third time,
Mana Beast deals 4 damage to each opponent and
each planeswalker you don't control.