Nifft
Penguin Herder
He could alternately use a thrown weapon as his primary, and be very effective at melee and short range, falling back to his secondary weapon (crossbow) when forced to fight at long range.* For weapon-using artificers, all the powers are Ranged OR Melee Weapon, and use Intelligence for both. So if your crossbow-wielding artificer is stuck in melee, he can drag out a spear or what-have-you and go to town just as effectively.
Make that laser cleric REALLY jealous!
Cheers, -- N