Chatgpt gave me the answer, what a revelation:

EMP Discharge (oGCD)
Level Acquired: 100
Recast Time: 60s
Effect: Deals lightning damage with a potency of 300 to all nearby enemies. Stuns targets for 2s.
Additional Effect: Reduces the cooldown of Reassemble by 5s for each enemy hit.

Change the name (that was obviously stolen from SB pvp) with flamethrower :'D