Originally Posted by
wholol
There's a lot of misinformation in your post.
For starters you need to clarify which pvp area you're talking about, in arenas call dreadstalkers is probably the least picked talent in that row, the other 2 options are extremely powerful when used properly.
Second, succubus build is fun in bgs but in any arena setting losing both ranged stun AND interrupt is too big of a deficit to cover with simply faster casts/% shadow dmg increase, this could work with some caster comp with a sham and a mage for example to cover for your lack of interrupt.
Third, haste never loses value so long as you are a turret based spec with long cast times, not to mention fear.
It might become secondary to other stats but it will never be neglected deliberately outside bgs or seeing big numbers in duels.
And to conclude, demo at 110 has more than enough burst when timing implosion and TC properly.