Phys Beams from left to right are 4;2;3 DU respectively.
1. Triple Aura Stack
2. Oil Trap
3. DST's, 1 In Each Direction
4. 1 LT, Rest Of DU Into Fireballs
5. Ensnare + Str Drain
First wave place all 3 aura stacks, both buff beams, and gas traps. Then place 3 1 DU reflects and 1 DST for each direction; the fill with 1 LT and rest of DU goes into one oil trap on buff beam and then all fireballs (x9).
TowerBoost Recommended If not neccessary for boss wave and most waves before.
3 Star far left buff beam to make auras big enough to prevent archers hitting core, and delay ogres until they get aggro'd.
Make sure each physical beam is far enough away from the app stack such that ogres cant splash the app stack when hitting the phys beams.
FOR SURVIVAL; 3x Fireballs in each direction, South, West, East. Rather than all East.