I've got some questions on magic points, power points, and POW attribute use, mostly for resistance. I've been on a long reading binge of MW, BRP, Advanced Sorcery, and The Magic Book. I think The Magic Book just threw the wrench into this, but here goes.
1. In MW, Magic Points = POW characteristic initially and MP will go down and recover as they power magic spells and recover per the rules.
2. In a forum post I believe regarding the different published works, Magic points = power points when looking at spells that are from different works (The Magic Book vs MW, etc) in usage and recovery. Power Points will initially be equal to POW and be spent/recover like MP.
3. For a MP:MP or PP:PP resistance roll (not POW:POW) it's the spellcaster's current total MP/PP compared to the target and the target will use as their MP/PP value a number that is equal to POW if not a spellcaster?
4. If a spellcaster is the target is it their total MP/PP or their POW characteristic? I think it's the current MP/PP so a wizard being targeted after having used almost all their MP/PP would be easier to beat, but I can see the other way.
Ex: A sorcerer (POW 18, MP:12 after casting) casts babble (MP:MP resist) on an orc (POW 8). The resistance would be 12 vs 8 and the wizard needs 70% or less to overcome the orc's resistance.