molonel said:I didn't mention that it should be stopped because it's "kind of like shooting a magical arrow." Those are your words.
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The reason it can't be used as a sneak attack is because the spell description itself says, " Specific parts of a creature can’t be singled out" which prevents precision-based damage.
For the first part, you quoted flavor text, not part of the rules text of the spell description, describing MM as a missile of magical energy, guess what? arrows are missiles, too.
For the second part, that's not why you can't sneak attack with it, you can't sneak attack with it because MM is not a weapon-like spell as defined by CArc.
I find that text usually undergoes this really cool metamorphisis into "flavor text" whenever it becomes inconvenient in a rules discussion. It's an attack. It does damage. It flies through the air as a magical missile. It's an attack with a range. It's not a melee attack. It's a ranged attack.
So my epic monk with exceptional deflection can deflect fireballs? Which is what your interpretation supports.
Additionally, 'A missile of magical energy . . . blah, blah' could as easily been described as 'A hand of force slapping . . . blah, blah' and then we'd have Magic Pimp Slap with focus: gauntlet, instead of focus: dart.