0.5.5 correctionsThe Act 2 Red Rift boss gained 50% Frost resistance in 0.5.4. It now takes 4 Frost to reduce Defense and Attack Speed by 1. Karsu fires another arrow for every 50 Attack Speed, up to 14 arrows, and each arrow applies rank-based Frost. Patch 0.5.5 left that base kit alone and raised The Warband's permanent Attack Speed per cast from 3 to 4. The video is from Demo 0.5.2, so its hero rankings may be outdated.
Shop for the boss
Check the boss before your last shops. Add a scaler for a long fight, and protect the backline when the boss has AoE. Aesah fills those roles with whatever the shop gives him.
Act 1 bosses
Hydra opens with a big burst. Since it does not hit the whole board, you can sometimes let an expendable hero take the first hit while your tank ramps up.
Demon has AoE and another burst around half health. Your team needs enough damage and sustain to finish the fight after that point.
Act 2 Dragons
Frost Dragon mostly pressures the tank. The other Dragons can hit more of the board, so your backline needs a way to survive.
Frost is weaker against the current Act 2 boss because of its resistance. Bring another source of boss damage.
The Fire Dragon is on its current stage cell. Move Rowan so the Dragon's cleave misses your backline. Grace keeps the team up while Karsu handles boss damage.


