UNIT - Creature Balance + Visual Changes

I am generally against magic for Orcs. And this is not an isolated opinion. The Cloud of Thunder would be more suitable for the Daughters of the Sky.

I completely agree with the idea that Orcs don't need magic and that the Cloud of Thunder would be a good fit, but then we shouldn't forget to weaken the Cloud – its strength depends on the number of units, and the growth rate of the Daughters is higher than the growth rate of the Thunderclouds.
(By the way, regarding the Cloud of Thunder – I tried to move this spell into the Summoning magic – it did move, but when I tried to cast it, it skipped a turn and that was it – can you tell me why this happened?)