Wave 22+ armor farm. (I published a normal survival build aswell if you just want the island pet.)
Arrows are cloud directions.
Pylon will force auras onto beam.
Minions are optional but I found them helpful.
No TB monk only summoners with 2 monk, 2 app, and 2, huntress guardian pets. (my 4th summoner I use an imp and a djinnlet pet to auto heal auras to go afk, but you can use whatever.)
Have all your summoners fly up the tree at pin 4 to get air, then fly ontop of the statue to pin 5. (Guardian pets should reach towers just fine.)