This is our proprietary skill rating calculation. This has nothing to do with official game ranking or MMR.
The purpose is to show player skill levels relative to other players, not estimate MMR.
Heal for 270 every 1s while Shield is active and you are at or below 35% Health.
Gain a 450-Health Shield for 3s after you use Charge.
Heal for 300 for each enemy hit with Fireball.
Increase your maximum Health by 450.
Increase your Healing received from others by 15% while at or below 50% Health.
Your Shield now uses a resource that Regenerates over time instead of using a Cooldown.