so according to http://www.mmo-champion.com/index.php?page=642 Rank 2 of Mind Sear costs 2890 mana. to me this appears to be a bit too much, since it does 212 to 228 Shadow damage every 1 sec for 5 sec to all enemies within 10 yards around the target, thats 1060 to 1140 dmg over 5 seconds channeled. (without the +spellpower bonus )
what do you think about this?
imo, the big mana cost limits the situations in which this spell is worth using. im not sure about how the spell generates threat, but 5 seconds channeled leaves a pretty big chance that it will be interrupted/silenced. even with 2% mana returned from VT the mana cost is high. i may think of other things to say, this is all i have for now