if you have low stats add some summoner towers to help
hint 4 : mortal tower need to cover the back road and front side of the crystal
up the north and south towers 2 times before the start to hold until you upgrade it after the east side
keep your eyes on auras health it may need to be fixed in middle of wave
put all your characters at the back of the door away from the towers so the assassians don't destroy the towers
(Black Arrows For Angery blossom Towers)
(Green Arrows For Mortar Towers) " Video For The Build Placement " https://youtu.be/hR86NZamQVE