Mind Flay (Rank 7)
230 Mana 20 yd
528 damage over 3 sec and slowing the target
Vampiric Touch (Rank 1)
325 Mana 30 yd
450 damage over 15 sec and causes all party members to gain mana equal to 5% of any shadow spell damage you deal.
let Gear = 1209
Mind Flay does not follow channeling rules and uses 59% damage applied
1209 (gear) *0.59 (penalty) = 713.31 (benefit from gear to MF)
528 (base damage) +713.31 (benefit) = 1241.31 (total damage)
1241.31 (total damage) *0.05 (vampiric touch) = 62.0655 (mana back per cast per party member)
62.0655 (mana back to the individual) *5 (number of party members) = 310.3275 (total mana back to the whole party per cast)
310.3275 (total mana back) - 230 (total mana spent) = 80
80 mana profit!
So what I was things was this...
let number of members in party = 5
let number of shadow priests in party = 5
lets see what we have now...?! :)
62.0655 (mana returned to the individual) *5 (as *5 is the individual's benefit from the other priests) = 310.3275 (total mana returned to the individual.)
310.3275 (total mana returned to the individual) - 230 (mana spent by the individual) = 80 (mana profit to each individual in the party)
80 (profit per individual) *5 (number of individuals in party) = 400 (total mana profit to the party each 3 sec)
400 mana profit! free damage and free mana!
With just one shadow priest in the party they would run out of mana as their mana is transferred too the other members. But if all of the members are shadow priests than that mana would be transferred back at a larger amount overflowing all 5 of the priest's mana pools.
This kind of party would render obsolete any and all +int gear/+spirit gear/mana over time gear and mana potions.
With free mana all members could have shields up at all times.
Keep in mind that this math is not taking into account 'shadowform', 'shadow weaving', 'vampirice embrace' or any of the other talents other then Mind Flay and Vampiric Touch.
Edit Numerical Typo:Fix Thanks to Sjans and lsfreak.
Edited, Apr 13th 2007 2:02am by Maxzzzz