OSR: High-Level Ilusionist Spell Rewrites

In the previous post , I covered low-level Illusionist spells for the Treausure Overhaul . Higher-level spells present their own design challenges. They need to feel more impact than lower-level spells, but won't be cast anywhere near as often. Sadly for the Illusionist, many canonical high-level spells are upgraded versions of low-level spells, or effects that could be replicated with lower-level…