Mantra of Persistence
Ramiel
Where the heck is this spell? And no its not in Fisherman's haven, the skill trainer does not have it and I've done all of the quests there.
Pharalon
You can buy it in Droknar's Forge
Cymmina
I got it as a quest reward past Sanctum Cay, I think.
Ramiel
Hey guys I found it on accident. It's in Augury rock. Marchena gives it to you as a reward for doing "Ghostly Vengeance."