The dual-wielding swordmage?

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Another option is to use the "Mages" property from AV on the Parrying Dagger. It's slightly more expensive than a generic +1 (1 level higher), but it saves you a feat.

Another option to increase damage as a Swordmage: Take the Arcane Fire feat and either a Frost weapon and Greenflame Blade, or a Flaming weapon and Frigid Blade (the cold-based at-will from Dragon).

This gives you an at-will that does both fire and cold damage. The first time you hit triggers the Arcane Fire feat, giving the target Vulnerability Cold 5 against your next arcane attack. So, if you keep hitting, you get a consistent +5 damage.

Add Wintertouched for an extra +2 to hit on most attacks. ;-)

 

[cdrcjsn]

I agree with the Genasi.

If you MC into wizard, you can add your Str damage to all your arcane elemental attacks with Elemental Empowerment. Elemental Echoes also adds another bonus to hit/damage.

 

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If you MC into wizard, you can add your Str damage to all your arcane elemental attacks with Elemental Empowerment. Elemental Echoes also adds another bonus to hit/damage.

IIRC, Elemental Empowerment only works with wizard powers.