Hint 1: 2 Archer, Buff Beam, Reflect, Aura Stack, 1 Mage/Spider, and Proximity Trap
Hint 2: 2 Buff Beams, 6 Harpoons, Reflect, and Aura Stack
Hint 3: Buff Beam, 2 Archers, and 1 Mage/Spider
Hint 4: South part: Buff Beam, Reflect, 2 Archers, and 1 Spider/Mage. West Part: Buff Beam, Reflect, 4 Archers, and 1 Mage/Archer and Aura Stack.
Hint 5: North part: Buff Beam, 4 Archers, 1 Spider/Mage, and Aura Stack. East Part: 4 Archers, 1 Spider/Mage, Reflect.
Random crappy build I put together it's overkill and probably only worth doing with crappy stack.