So I did a normal raid earlier after seeing KackisHD's raid review of the weapon and saw it did amazing in the bathers encounter and assumed it would do the same for me. It did! Not only that but in the Eater of Worlds raid lair, this is amazing for damaging Argos, weak spots in between damage phases. So tonight I tried my first prestige raid and on the bathers checkpoint and it was horrible. Is it just the buffed damage needed for them or is sleeper in need of some sort of fix?