Dealing with mana issues - Shadow
I have a question about the effects of both Vampiric Touch and Glyph of Shadow Word: Pain spells. With both you gain 1% of Maximum mana per 10 sec. The only difference is triggering. VT triggers this effect after successful Mind Blast and Glyph of SW:P triggers on ever tick of SW:P.
What happens if you cast both VT and glyphed SW:P? Which effect is apllied? I am pretty sure it is not both, but then...what is the use of that glyph? For those who don't use VT + MB combo?
Another thing, I've heard that following two talents cannot stack with each other:
Shadow tree : Improved Spirit Tap (33% mana while casting - for 8 secs, after crit)
Discipline tree: Meditation (50% mana while casting - permanently)
What happens here? If crit happens, mana gain while casting is 83%? Did someone checked if those two are stackable?
Working WoTLK calc : http://wotlk.openwow.com/talent#b
My idea of full tree: http://wotlk.openwow.com/talent#bVcbhZZGxfVofzffqfzAo
I am asking all this because since I leved and played Shadow Priest in endgame, I always had mana issues, so this time at Lordaeron - I want to fix that with talents...
Thank you for your answers and opinions!