How to beat cave 5 - Use Units- Witch, Centaur, Black Knight, Succubus, Goblin, Mermaid, Use Spells - Healing, Phoenix Bird, athena hercules and zeus wrath work on everything. even spells. snake, just keep knockc it in the air, and when your 35 man army of goblins gets to the castle, use hercules str and it will kill it before the goblin gets to your castle. Hercules, Athena, and Arrows. Just keep hitting forward. When your mass army is at the front of the castle and you hear the first ring, cast Athena on your melee units and Hercules on your ranged units. Use phoenix and arrows when you have less troops and want to clear out the way.