Honestly as an Acrid main I can confirm that focus crystal is pretty bad on him (the scrap would go much better into things like gasoline or topaz amualtes cause it really good to let your epidemic get creatures low to kill the with gasoline and use the amulet to tank other enemies)

Very true I just unlocked Acrid and after that run succeeded then gave him a try and 2 ignited beetles or whatever they're called killed me