Totems have one really big problem. How ? When I place Trap and in Trap radius I place Totem , Totem disappear Trap and got immune. I think Traps have some specific Area of Effect Immunity. Why ? Because when i use some other Area of Effect for example Volley, Totem dont got immune and isnt destroyed. For correct functionality ,Totems must have specific Area of Effect Immunity vs Traps.
2. Totem ignore Volley(Area of Effect)