While having an enemy Phaselocked you and your friends Regenerate Health.
Press [action-skill] to lock an enemy in another dimension, preventing him from fighting back for a short while.
Some enemies cannot be Phaselocked and instead instantly take damage.
Shooting an enemy creates a lingering Acid Cloud, dealing constant Corrosion Damage to enemies who touch it.
Only one Acid Cloud can be active at a time.