I have Grim Sorcerer at master level and am about to get Grim Sorcerer II. My question is which will be stronger to use? And is it the same for other spells in the same situation? Any help is appreciated ty.
Always look at the values of the spell. If you have Expert or better, the next level up is going to be weaker at Apprentice and Journeyman, and usually weaker even at Adept. An old master will usually be replaced by the next tier's Expert and up.