You'll notice that the debuff is active at the same time as S2M, and conveniently my character is actually still alive. If you can live out the S2M timer, you can be immediately bressed.
In other news, I think Mind Spike should have double the base damage - it's currently pathetic (2.3k [35% sp] per 1.2s cast + 4.6k delayed single target on explosion and 2.3k aoe, vs mind flays 16.4k [200% sp] over 2.4 seconds). Thats 210% total SP to MS on a single target (+70% small aoe) over the same duration as Mind Flays 200% (Strangely, the damage numbers don't equal the sp? 6412 Int). The damage bonus is completely insignificant, and the delay of Mind Blast to make efficient use of it as well as still slow ramp makes it quite pathetic. If it had 50% SP per cast, maybe it would be stronger (takes it to 300% SP per 2 casts total single target, 100% aoe). This is what we get for a final tier talent?
(Conveniently, MS used to be 100% sp/cast and boosted next MB by 20% stacking 5x, while MF was 120% over 2GCDs and got buffed)
Legacy of the void is... lacklustre. It's better than mind spike, but similarly there's not really much difference between activating voidform at 70 and 100, especially when it's a bit more optimal to trigger it at 85% anyway. I think they should roll Void Lord into Legacy of the Void, and give a new T4 talent.
Either way, next to S2M's potential, LotV and MS just don't contribute enough, they barely even add to taking NO talent.