Rolemaster’s 3 realms (Essence, Channeling, Mentalism) creates conflicts and limitations. Certain spell lists never fit well in certain realms and casting mechanism were basically the same between realms even when the spell called for very different methods (alchemy imbedding, runes, circles, bard/singing etc). As part of our own Spell Law Redesign (Project BASil) we deconstructed the whole system and started from scratch. Step 1 was to define Realms into more specific parameters of effect and mechanism. During that analysis we found that we really needed to expand our system into more than the 3 standard realms.