The Evolved Ice Spirit is currently in a perfectly balanced state. Its popularity mainly comes from being an effective counter to some of the more overpowered cards, like Evolution PEKKA. I believe Evolution Ice Spirit should remain unchanged.
As for Evolution Skeletons, they shouldn’t lose an additional skeleton. They’ve been relatively weak since their first-hit speed was nerfed in the last balance update (they even lose 1v1 against regular Skeletons). Overall, they are balanced right now, and further nerfs could render the card unviable.
