Call of the Undying( Races of Eberron, p. 108)
You call upon the power of the Undying Court to instantly recall a previously cast spell.
access to the Deathless domain, Elf, region of origin Aerenal,
In place of the granted power of the Deathless domain (see page 105 of the EBERRON Campaign Setting), the Undying Court grants you the ability to recall one previously prepared and cast spell as a swift action once per day. The recalled spell must be at least one level lower than the highest spell level you can cast.