Destil
Explorer
So... like a completely different power that does something different.
For various reasons, you can't have a basic attack that targets multiple targets (without some very special circumstances) so that makes this power unworkable. It gets away from their goal: To make the classic magic missile. They can't have the magic missile that models the classic MM not do auto-damage, cause that's all the classic MM did. People wanted it.
The classic magic missile gave you multiple missiles that you could split up however you liked between targets. It also was auto hit. I like the first aspect and think it could be interesting in 4E, but not the second, which is just boring. So that's why my idea MM can be multi-target. The +2 is a concession to players wanting it to be accurate, I would most likely drop it on my own.
I actually agree with 'no mulitarget basic attacks' in principle and had that in the write-up at one point (only the single target version was a basic). But then Heavy Blade Opportunity and its buddy Twin Strike had some words with me, the rules don't actually say that (though IMHO they should). Not as big a deal with ranged attacks as melee, anyway, since you don't get AoOs granted for ranged; just stuff like warlord bonus attacks.