Here are three classes I made for ACKS which were inspired by the Grey Matter retroclone. Grey Matter is a retroclone by the person behind Taxidermic Owlbear (http://taxidermicowlbear.weebly.com/) which also hosts the giant comprehensive list of retroclones. Grey Matter is pretty cool in that it is a simple OD&D-alike with a billion options for races, classes, spells, monsters, etc. So it’s a 400+ page rulebook that’s all simple options rather than complex rules.
Anyway, I took inspiration from three classes in Grey Matter – the Bishop (warlord/cleric), Inquisitor (assassin/cleric), and Mystic (mage/cleric) – to build the classes here. The Mystic name is obviously already taken for ACKS, and a multiclass mage/cleric is already done in one way via the Nobiran Wonderworker, so I decided to turn my class into a human wonderworker for those who don’t want to use the Nobiran for whatever reason. Hope you enjoy.