Bishop Damage Equal to Archmage Damage

I was running the numbers for Chain Lightning spam and Angel Ray spam post chaos patch and I found some pretty surprising conclusions.

Chain Lightning: 850% damage, +15% crit, +50% damage (ele amp)
Angel Ray: 900% damage, +50% crit (Holy Focus)

So after Ele Amp, Chain Lightning deals 1275% damage.




Now for critical and mastery.
45% of the time, Angel Ray will deal normal damage of 75%~100%
55% of the time, Angel Ray will deal critical damage of 90%~150%

Angel Ray damage after critical = .45*(.75*9 + 1*9)/2 + .55*(.9*9 + 1.5*9)/2 = 948.38%

80% of the time, Chain Lightning will deal normal damage of 75%~100%
20% of the time, Chain Lightning will deal critical damage of 90%~150%

Chain Lightning damage after critical = .8*(.75*12.75 + 1*12.75)/2 + .2*(.9*12.75 + 1.5*12.75)/2 = 1198.50%




Now for Spell Booster. Chain Lightning attacks once every 0.68 seconds. Angel ray once every .81 seconds.

Chain Lightning damage per second: 1198.5%/.68 = 1762.50%
Angel Ray damage per second: 948.38%/.81 = 1170.84%

So if you compare the two, Chain Lightning deals 1762.50%/1170.84% = 50.5% more damage.




But that's just for a single target. Let's compare them at mobbing.

Chain Lightning hits up to three targets. The first for 100%, the second 90%, the third 80%.
Angel Ray hits four targets for full damage.

Against four or more targets, Angel Ray deals: 1170.84*4 = 4683.36% DPS
Against four or more targets, Chain Lightning deals: 1762.50%*(1+.9+.8) = 4758.75% DPS

With Chain Lightning dealing a minuscule 1.6% more DPS.

How do you feel about this? Bishops are apparently just as good at training as Archmages, yet also get Holy Symbol's bonus EXP. I'm thinking Holy Symbol needs to be removed.