Kombat Rage

The Rage was a type of energy that affected Kombatants during Mortal Kombat vs. DC Universe.

Overview
The power of the Rage came from the other universe that was attempting to merge with the reality where the DC kombatants resided. Its energy once it came into contact with a fighter created a terrible fury that overwhelmed its host and forced them fight in anger.

Those affected by the rage are covered by glowing yellow energy with their eyes glowing golden. In this state, the kombatant's power is increased greatly as is their anger which forces them to fight anyone; even against comrades.

Source

 * Mortal Kombat vs. DC Universe