Combat Virtuoso

Heroic Tier
Prerequisite: Bard
Benefit: When you use any attack power gained through a multiclass feat, paragon multiclassing, or the half-elf ’s Dilettante racial feature, you can use Charisma for the power’s attack rolls rather than the ability score normally used to make the attack. You still determine damage normally.

Published in Arcane Power, page(s) 124.