I have 3 questions:
If a scroll can only be cast by arcane casters, does it suffer armor arcane spell failure when I use a scroll for it through UMD?
If a scroll can only be cast by divine casters, does it suffer armor arcane spell failure when I use a scroll for it through UMD?
If a scroll can be cast by arcane AND divine casters (like greater sanctuary), does it suffer armor arcane spell failure when I use a scroll for it through UMD?