Back to the original post you could also look at Dungeon Crawl classics the Corruption Mechanics for some “chaos gifts”. In DCC when a Wizard casts a spell he makes a caster check to see how potently he casts the spell and if he rolls a one there is a chance to roll on a fun table for corruption which can give unique and interesting mutations.
as to a law v chaos debate. In the context of the source material, Moorecock, it was about cosmic forces vying for control of the universe with the Eternal champion the tipping point between the two. In D&D this concept was similarly presented and why True Neutral was so difficult to understand because of the ascription of the Good and Evil morality to the Law vs Chaos cosmic axis. Law didn’t, as others mention, mean “following the law”. It meant an alignment to the forces that bring order to the universe (whether that be for good or evil), and structure. Whereas chaos was often about breaking from the shackles of that structure and aligning with antinomian powers. Whoever mentioned Daoism and the middle way as Neutral was essentially right because Moorecock was influenced by some of the trappings of occult authors like Blavatsky and others in his cosmologies such as Crowley with the Black School, Yellow School and White School. The alignments originally were direct ports over of these ideas but with little to no real explanation because like most of the source material at the time Gygax assumed people knew what he was talking about such as the assumption you already had Chainmail when you bought the LBB.
appendix N is a wealth of ideas that more D&D fans should be reading even if they’re offended by some of the outdated ideas and motifs. Moorecock especially is particularly key for understanding alignments. When developing DCC Doug Kovacs the other Goodman Games crew were challenging Joseph Goodman to read the Appendix N materials for inspiration and he really captured the essence of those materials similarly to the pre-1e D&D material of the LBB and early AD&D material.
