Description: Like his brother Festergut, Rotface's heroic mode only grants one new ability - Vile Gas. Yes, this is the same Vile Gas from the Festergut encounter, it will hit 3 random targets and disorient them for a few seconds. Since Vile Gas perfers ranged targets, as long as you have a few people standing at ranged you can effectively control who gets hit, which makes the encounter pretty trivial.