Evokers Mark

(Dragonmarked, page 140, DnD 3.5)

[General]

You can use your dragonmark to empower your more destructive spells.

Prerequisite

Spell Focus (Evocation), any true or aberrant dragonmark.

Benefit

When you cast an evocation spell, you can spend 1 action point to empower it as though using the Empower Spell feat, but with no increase in casting time or spell level.