Return Fire doesnt work against Graves' Jar of Dead

[summerstormforfun]

Even though she gets spirit lifesteal from the skulls hitting an enemy, Return Fire neither damages her or her summoned skulls from Jar of Dead (the exploding damage done by ghouls from Borrowed Decree does get returned)

 

[Steel Marionette]

Can confirm, return fire does absolutely nothing to either the Deadheads or to Graves. Idea to counter this, make Deadheads not immune to the spirit damage from Return fire