There's been some discussion semi-recently on how to make the mod more interesting to people who've never heard of it before, so here's an idea. Ars Nouveau shows off the kind of things its spells can do by generating premade, non-editable spellbooks as dungeon loot. Hex could do something similar, using "ancient cyphers" left behind by the casters of the past. They would come pre-written with some simple spells (ie raycast+break, explode, self impulse) and possibly some fancier and more complex ones too. Since they're cyphers, they'll break eventually, which encourages players to learn how to actually replicate the effects. Also, as a neat cosmetic touch, they could use a custom sprite where the copper band on the cypher is oxidized to show its age.