When looking at prospective skills in the trainer menu before purchase, too little information is given. Two key pieces of information must be given that are currently absent:
(1) Cool down time;
(2) Requirements.
Having played a tank my entire time in Eldevin, there was no information in the Trainer window that Repentence requires essence. It being a better tank skill than Glaciate (what a horrible skill) I purchased Repentence. But being that I don't use essence, now I can't use it. I want my 1000 gold back please (and you can remove the skill). Thank you.