When cast perfectly, you can capture the echo of your own spells, allowing you to retain a spontaneously cast echo rather than losing it.
Prerequisites
Ability to spontaneously cast arcane spells, echoes class feature.
Benefit
Once per day, when you spontaneously cast an echo, you retain the echo rather than losing it.
Special
You can gain this feat multiple times. Each time you take the feat, you may use its benefit one additional time per day.