Certain MOBS that take a long time to take down and are hard to interupt really
benefit from reducing their mana pool. The only MOB that I'm taking about here
is Vox. Her channelling skill is so high now that even with 18-20 tanks
bashing/slamming/kicking and mauling her flesh, she will still get a 10 second
casting time complete heal off that a level 50 cleric sometimes get interupted
when he/she gets bumped by players pets. If you can get 3 or so enchanters
using mana sieve on her. she'll only get one Complete Heal off- otehrwise.......
not a prestty site.

Other than that - it's a PvP oriented spell. I think the upgrades were meant to
help the Zek server enchanters after charm/fear were removed.

PRevious post:
Personally I find most interesting the change to 'DDD'. It shall be interesting
to see if this spell makes its way back into peoples hotkey bank... imho it
seems like more of a PvP spell now (mana drain on Mobs? whats the point?)