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.
Reduce your active Cooldowns by 40% after getting an Elimination.
Reduce the Cooldown of Presence by 0.4s for each enemy hit by Valor.
Generate 1 Ammo after using Grace.
Increase your maximum Ammo by 3.
Heal for 500 after using Presence.
Grace now hits all enemies in front of you instead of only one, but its Cooldown is increased by 1s.