How to defeat Crowd Pummeler 9-60?

Build in the video(Undead Week) – Bloodmage Thalnos, Whelp Eggs, Darkspear Troll, S.A.F.E. Pilot, Blizzard, Ghoul, Fire Elemental

Tips for the boss fight of Crowd Pummeler 9-60 :

1. When writing this guide, it was Undead Week. Since Undead leaders aren’t well-suited for this dungeon, I did not use any leaders when recording this video. Theoretically, this build can be used with any hero.
2. On this map, there is a buff on either side that can be picked up, making you invincible for 10 seconds. This is key to this level. Occasionally, deploy troops to get this buff or use Unbound to snatch it, to prevent it from being taken by the enemy.
3. The Boss uses chain attacks, which can knock our minis off the field. Minis that are knocked off the field are considered as dead.
4. Use the AoE (Area of Effect) of the Fire Elemental to deal with the small chicks, try to hold the middle spot as much as possible, and use Blizzard to control the field when in danger. Try to use Whelp Eggs to deal damage to the Boss as much as possible.