alchemist and warpriest can not be salvage with some minor errata at this point
after reading inventor playtest it was obvious alchemist should be a subclass of inventor
unstable trait is so fitting for alchemist
but that is too late now
though alchemist may fit better in a party of 5 control by 1 player in crpg than actual pnp game control by 1 player
it is difficult for a player to do nothing but provide mutagen healing potion and bomb for fighter to double throw
but for a companion in video game to provide all this and do very little in combat would be acceptable