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Message: <blockquote data-quote="Jürgen Hubert" data-source="post: 1218499" data-attributes="member: 7177">I've just thought of an idea how to adapt the Mythos magic system from Cthulhu d20 to D&D:First of all, anyone can learn any spell if he makes the necessary Spellcraft check (DC 15 + spell level). But only those who could cast it ordinarily (wizards, clerics, etc.) can cast the spell safely.This system requires that you use the Sanity system from CoC d20. Casting a spell without the usual prerequisites costs Sanity:0-level and 1st level spells: 12nd: 1d23rd: 1d34td: 1d45th: 1d66th: 1d87th: 1d108th: 1d129th: 1d20It also does temporary attribute damage:0-level spells: 01st: 22nd: 23rd: 44td: 45th: 66th: 67th: 88th: 89th: 10I'd probably link specific spell schools to specific attributes - Enchantment to Charisma, for example...Casting spells with permanent XP costs also does permanent attribute damage that cannot be recovered through any means.The "caster level" is always the minimum level ordinarily required to cast the spell, or the spellcaster level if the caster is already a spellcaster (any type).This nicely empathizes that power in a Mythos universe is easy to get - but there is a terrible price to be paid for it.What do you think?</blockquote>