The Gathering

If your devotion to white is the highest: Gain X divided by 5 life.
If your devotion to blue is highest: Draw X divided by 10 cards.
If your devotion to green is highest: Put any amount of X divided by 12 +1/+1 counters on any number of creatures you control. Proliferate.
If your devotion to red is highest: Deal X divided by 8 damage to any target.
If your devotion to black is highest: Put any amount of X divided by 15 -1/-1 counters on any number of creatures.