His trinkets are garbage. Quite literally useless. (for reference:
https://docs.google.com/spreadsheets...view?sle=true#, this is just a general idea of trinkets though, it will depend on his own stats and gear)
Only 2% of his damage is Blessing of Might. He should be using 3x Blessing of Might instead of 1 (Luckily this mechanic will be removed in 715).
He cast 9 Templar Verdicts outside of his Judgment window. This should be 0. (
https://www.warcraftlogs.com/reports...tbuffs=-197277)
He wasted an insane amount of holy power. 39 Holy Power lost because of overcapping. This wouldve been 13 more Templar Verdicts (most important ret skill) he couldve done (
https://www.warcraftlogs.com/reports...l=109&source=3).
Crusade should also be used on cd, he could've gotten another 17ish seconds out of a 3rd crusade this specific fight. The only time you dont have to use it on cd, is when the killtime is shorter than 4 minutes, as he only gets to use 2 during the fight then anyway, so might as well pick a good time for the 2nd.
Potion of the Old War will beat Prolonged Power by a fair margin on singletarget fights.
Mark of the Hidden Satyr neck enchant will be better than Mark of the Claw.
No food buff.
No cloak enchant.
His stats seem quite alright, although he could probably use more versatility.
He generally just doesnt know the basics of ret. There is an ingame rotation helper for ret to give a general idea of how he should be playing. It should by no means be tunneled, but it helps with getting a feeling for the spec.
https://mods.curse.com/addons/wow/hekili
Sorry for being so harsh, I hope it helps though.