My changes if I ran the jointLegacy of the Void Passive 50 % damage boost to all Insanity generating abilities coupled with entering VF at 75 %. Puts it right on par with S 2 M . Mind Spike Boost damage by at least 50 % and remove the explosive element entirely . Instead give it a debuff that ticks for X amount of damage say 5 % damage dealt ? That stacks up to 5 times . This eliminates the problem with it interrupting your Mind Blast rotation but still making it a viable DoT . S 2 M Keep the damage and haste boost as is BUT you take 1 % damage every second and a stacking 1 % every 5 seconds . So it would go 1 % 1 % 1 % 1 % 1 % 2 % 2 %. when you hit zero Insanity you go Temporarily Insane , making you unable to move or cast abilities but casts Mind Flay at all targets , friendly and enemy , for 25 % regular damage . This effect lasts for 30 seconds . Pulled the percentages out of my ass so I ' m sure the math is wonky .