Oil of Repulsion

This oil contains magnetically charged iron filings repelled into opposite ends of the vial. For 1 minute after you apply this oil to armor, any creature that hits you with a melee Strike must attempt a DC 28 Fortitude save with the following effects.

Success The creature is unaffected.

Failure The creature is pushed up to 10 feet away from you (the GM determines the direction).

Critical Failure As failure, and the creature is also knocked Prone.