Rust in Pieces turns enemy robots against S.A.B.R.E. Force units and trigger its self-destruct mode when enemies are defeated. This helps in battles where the enforcers and robots try to overcome you.
Using it on the Nephilim will cause the robot to create a suction that pulls nearby enemies toward it. The attack will result in significant damage to the surrounding enemies while the Nephilim explodes. Using it on the Seraphim will cause it to shoot at the enemies until the Seraphim explodes.