Prerequisite: Genasi, swordmage
Benefit: When you use a swordmage power that has the acid, cold, fire. lightning, or thunder keyword, you gain a +1 feat bonus to damage rolls. This bonus increases to +2 at 11th level and to +3 at 21st level. [AP:125]
This is comparable to Weapon Focus feat, normally considered to be an excellent choice due to the free damage bonus.