Mogdrogen can be paired with other tier 3 devotions too but they are going to be just some proc binded to pets. Mogdrogen got has so high buff for both oa and speed (very important) that’s it’s hard to beat it in terms of damage. Also I would never call it overpowered really and it fits perfectly bleeding and physical which is already strong: [1.1.9.0] Beastcaller Conjurers - Bleeding and Chaos/Bleeding hybrid-> Crucible 4:49-5:20/ SR 115/ Callagadra 2:53-3:27 + Ravager 1:23 + Crate ~30 seconds
First setup is focusing on bleed mostly but physical damage is still there due to lack of converions. Damage is not overpowered but not bad either. If you want to go pure physical without any supportive damage then yes, it’s going to be underperforming sadly.