The Bamstacks Variant: Classes
The Bamstacks Variant: Spells, Races, Feats, Rules
Players Handbook rules
If you have issues seeing these documents, it may be because you use Firefox. I'm told that they are set up for viewing on Chrome and there not be an easy fix.
Note, some of these changes are based off of Treantmonk's changes found here: The Treantmonk Variant, but also new and revised classes, subclasses, and spells by myself, Benjamin Huffman, Ross Leiser, u/SwordMeow, u/laserllama, and from Silverflame's First Compendium