Ranged fire-throwers. They are immune to fire and can absorb flames to clear paths or damage enemies from afar.
Stealth specialists. They are immune to poison and can jump on enemies' backs for massive backstab damage. overlord-raising-hell-gog
Farm specific beetles in the Tower’s dungeon to replenish your horde: Battler Beetles: Brown life force. Magma Beetles : Red life force. Dazzling Beetles: Blue life force. Puff Beetles: Green life force. GOG-Specific Setup & Configuration Ranged fire-throwers