witch - as @Damien4794 mentioned, the rarity would be questioned due to it having same spawn settings as the night witch. Personally, though, I am happy because I think it is reasonable and my giant witch beatdown is better (yay!).
flying machine - definitely, this is a great change
ram rider - I think that it might be too much, as the bola is what makes it legendary. maybe 90% instead of 85%?
giant skeleton - nice job supercell, addressed the issue well.
goblin hut - I don't know, but it should give a boost to spawner decks as well after the barb hut nerf.
This content is not affiliated with, endorsed, sponsored, or specifically approved by Supercell and Supercell is not responsible for it. For more information see Supercell's Fan Content Policy:www.supercell.com/fan-content-policy.