Does anyone know the buff rules and limitations in vanilla wow? Is there a maximum number of buffs you can have? Are there any buffs you can't gain? For example can a level 60 buff you with say Blessing of Light whose rank 1 is learned at level 40? Are there any other restrictions on buffs that are noteworthy? I'm aware some buffs trigger a debuff that prevents reapplication for a short time, such as bandages.