You will have to work out what size to make your auras for first wave as the crystals explode then move them with the jester and expand their size.
I quad box this semi afk with 4 summoners. 2 huntress/Apprentice the second 2 are whatever really. I usually do 1 with and imp and 1 with mega chickens.
Normal survival gets more hairy than mixed mode but it will complete it.
Make sure to separate your lt towers so each summoner will will boost a stack.