If thats the case then screw it.
It's worth it if you are looking to min max your gear. If you are casually raiding or not even interested in it, then don't bother.
But I believe I simcrafted my shadowd priest in ilvl 500 gear, at like a 1.2k dps increase with even the meta so /shrug
Yes you have to. So screw YOU/IT
Well technically you don't have to run MSV for Sigils of Power, You could just run Terrace of Endless Spring as that raid drops both types of Sigil. However it will take alot longer unless you get very lucky
EDIT: Seems this was changed! (see below posts!)
Last edited by The Glitch; 2013-04-17 at 04:45 PM.
you are free to screw it if you want to, but I'd say legendary quest chains aren't good sex partners.
Both sets of sigils drop from all three LFR tier 14 raids. Only on normal/heroic does sigils of power only drop in MSV and sigils of wisdom in HOF and ToES.