When I was a kid, this game scared the living shit out of me. Still does, now that I revisit it. Something about those pixelated brown things. The only thing missing is my SNES controller.
Wave 56!!!
Party: Warrior, Ranger, Cleric, Conjurer. Make sure the warrior has a shield. When choosing powers, get as many boosts as you can (ones that last for the duration of the battle). Give both the Cleric and Conjurer the Revive power. Make sure the Conjurer has the Wargolem power. Give the Warrior very high Endurance. Give the Cleric and Conjurer high Intellect. Give the Ranger high Dexterity.
Lineup: IMPORTANT!!!! Put the Cleric in the back row. He's going to be your lifeline towards the end. The only one up front should be the Warrior.
Battle Tips: At the beginning, summon two Wargolems and use all your buff powers. Use the Ranger's Nature's Balm power on everyone, including the Wargolems. Use the Warrior's Shield Wall as much as possible, save your power so you can use it. Don't use Power Attack. If anyone dies, remember that you'll have to re-buff them once they're revived.