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 450 after activating Impasse.
Increase your maximum Health by 600.
Reduce the Cooldown of Warder's Field by 2s.
Generate 4 Ammo after activating Warder's Field.
Reduce the Cooldown of Earthen Guard by 2s.
Impasse now has 2 charges and its Cooldown is reduced to 12s, but you are unable to destroy your walls.