Upgraded Wizard Towers do a great job on this level.
Here is a suggested starting layout below then just build out from there. This level was an easy perfect score with two militia towers at the back and wizard towers scattered around the center of the map.
Level 9 - Starting Towers
Note the levelled up wizard tower at the center left position.
Level 9 - Progress
Level 9 - More Progress
Level 9 - Near the end
We have questions and answers related to this topic which may also help you: Show all