Bonus round

What way to stay more then 65000s? Now i use shadow with silenser,reaver,blade of darkness,demon blade ~500dmg,hydra. Iron man with withered set. 3 beaver and 3 jilly on end of path. 2 shadow and 1 gib with frozen hearts. Manitou,forge,knus,abbys and some beaver. What item or tower plasement is best?