Alchemist no longer activates other alchemists after the update which feels incorrect.
Yes, cards that give Power to other cards are now unable to change their number.
I did this change because the choice on who to give Power to was almost always these cards( Ex: Alchemist, Shark etc.) and nobody else.
This change is intended to bring back interesting decision making. I may make an exception for Alchemist in the future but would love to hear further feedback on how it feels :)