Rentlock
Enchant ur icc ring, put 1x dragons eye, u have 2. Change ur boot enchant with tuskars vitality, u have lot of hit.(Try to aim 342 hit rating with a draenei or 368 without)
About ur talents as desto. Take this specc
The World of Warcraft Armory, with glyphs of inci, life tap and conf.
Use firestone
About ur rotation. Theres no rotation. Make sure life tap is up every time.
B4 each boss i start with life tap, potion of wild magic (u can use 2 each boss fight), immo, chaos bolt, cod, conf and 3x inci. Fill up.
Stats prio
hit
sp
haste/spirit
crit
Tip.
i)If u have 3s left for immo and backdraft is up, use 3x inci, even if immo is not on ur target.
ii)Try to use flame cap with potion of wild magic
iii)Make macros with /pettatack /cast spell name. Have ur imp passive and dont use auto cast for his fire bolts.
iv)For aoe use soc, dont use it if there are 3 targets. Use it above 3 targets. U do more dps to single target, if there are 3 mobs up.
PS.
We have 2 afflictions, 1 demo and 1 desto in our guild(I play desto).
Normal icc25, theres no chance any dps can outdps me.
Heroic icc25, i switch to affliction after the 1st swing. Again noone can outdps me.
Also im tanking keleseth normal/hero
GL with ur lock.