Solo Survival Build
(I have no idea where the extra 5 DU are comming from. This should be 140/140)
Use Mana Jester until all defenses are upgraded to 3 stars -> switch to summoner.
The east crystal needs the most attention
Hint 1: place the spider first and than the mage on top of the spider
Hint 2/3: These physical walls need constant repairing, especially 2 (>= Wave 19)
Builder Stats (HP/DMG/Range/Rate)