Surprisingly, I’m not too bothered by the summoning on all 4 troops. Its excessive and could have easily stayed on 1 troop, but can be dealt with.
The last room:
Harpy Mage (Red/Yellow)(75% mana start)(exploder) - summons Blade Wing
Queen Xochi (Yellow/Brown)(aoe dmg) - Harpy Mage
Harpy (Green/Brown) (life) - Harpy
Blade Wing (Blue/Brown) (% kill) - Hapry
(+2 Brown, +1 Yellow, - 1 Purple)
You need to kill Xochi first because she does AoE damage. On top of that, she resummons an exploder who could very likely cause the headaches you’re all worried about.
At a worst case scenario, a second Blade Wing get summoned in. It does damage to one troop with a chance to kill.
After Queen Xochi is killed, you want to eliminate the Harpy Mage so Blade Wings can no longer come in.
From there, its 1-2 Blade Wings and many Harpies. Harpy adds a lot of life, but instakill ignores that so its a filler summon. 1-2 Blade Wings won’t be fun to deal with, but once gone they can’t come back.
Dealing with Harpies will be like dealing with Alderfather’s summons in Primal Rift. Time consuming but not too difficult.