I couldn't get the birds on the first map, so I wandered around the edge, losing small amounts of health, until I went to Ciel on map 131 with 160 mana and birds – she returned to map 141 fully equipped: with 800 mana and all 5th-level spells.
The opponent ran off to find a counter, even abandoning his main hero. When Ciel caught up to Charn with 500+ skeletons, the latter couldn't be saved by them or the cloak of defiance: a single lightning bolt was enough.
Thanks for the game!
I confirm, I was looking for the sphere of prohibition, but I couldn't find it. With the cloak, Ciel was too strong.