When you throw your Jar of Dead, all of the Deadheads go above the Patron and do not deal damage. It works on the phase one but does this for phase 2.
https://medal.tv/games/deadlock/clips/m0TQenJO7FFvS4HM3?invite=cr-MSxHYngsMTEyOTUyODky&v=12
https://medal.tv/games/deadlock/clips/m0TQenJO7FFvS4HM3?invite=cr-MSxHYngsMTEyOTUyODky&v=12