Hint 1: 16LTS
you can use 2 summoners with monk+hunt guardians and 1 with a hunt+app guardians
i start at wave 22 personally b/c best for chests

if you cant see required hero stats for app they go from left to right excluding thp 6k/3.5k/4k

lastly this is mainly ment to last you from 22-30 b/c those are the supposed best armor drops. can hit 35 but you would kind of need to be on to heal at some points or if you didn't want you to you can add a extra ph beam at the other side of the LTS. ill add a hint 2 to the spot