Simple Q&A D&D 4e Thread 3

[ThePurple]

You hit a creature and then one creature within 5 squares from the target. You can hit the same target, so its CON damage only, but then it pops the vulnerability.

You're talking about Chromatic Bolt, not Chromatic Orb. And I'm pretty sure that "one creature within 5 squares of the target" doesn't include the target. At least that's how I've always interpreted it in my games.