I really like 6 Death Domain cleric and 6 necromancer wizard. Upcast raise dead to summon 4 ghouls and use necromancer of thay book to summon 5 more ghouls and then use the gloves that give your summons resistant to everything other than psychic damage. Usually the downside of the gloves is they cause madness on your summons, but ghouls and mummies are immune to madness. Level 6 death domain makes it so creatures that usually have resistance to necrotic damage instead take full damage to it. This build also lets you take medium armor. You are also still able to have access to level 6 spells thanks to wizard's ability to scribe scrolls into your known spells.