dps char that i use is beam ev. i tboost and hero boost during boss. my tboost is 4k ab2 and 7k ab1
my app is spec'd into all damage and shes at 7.4k dmg 4.5k rate and 4k range. tower hp is like 1k if you were wondering
have the summ boost hint 2. which is the tower stack with the dsts facing north and dps those snowen first. kill them asap. then move your boost summ to hint 1. then kill the rest.
if you do it right, your towers dont get hit on boss waveand if youre tboosting every wave. your towers wont get hit there either. if your towers cant kill ogres fast, your south crystal will die.