Painkiller

Industrial Approach: 10th level Whenever you cast a tech power of 1st-level or higher, or deal damage using your Explosive Resilience feature, you can cause a friendly creature you can see within 30 feet to gain temporary hit points equal to half your berserker level + your Intelligence modifier. Additionally, while they have these temporary hit points, they have advantage on saving throws against effects that would cause them to be frightened.

Granted by Industrial Approach at 10th level.