Divination & Math - Is it worth using in dungeons? Only in specific situations?

[Boomsmash]

You have 2 DPS though, and chances are if ones ranged and the other's melee, then you'll be giving both of them cards.
So even discounting both Tank and Healer completely...

With Div:
3 x 6% + 2 x 6%(from Div) + 3 x 8% = 54% over 3 minutes
No Div:
6 x 8% = 48% over 3 minutes

If you consider Tank and Healer combined to match up with one DPS (Tank damage is approx. 70% of a DPS, Healer is approx. 50%, but with more downtime in dungeons could drop it a bit more) then the Diviniation rotations goes up to 60% over 3 minutes.


Or another way to think about it...

Diviniation is a free additional buff on top of all of your other cards, and it equals 6%.

In order to use it, you need to reduce three of your 8% cards down to 6%. That's a loss of 6%.
So for one DPS, it's breaking even, and the AoE effect of Divination on your other DPS is a gain.

This is bad math. You have to remember that your percentages are against the entire party. A 8% buff isn't 8% on the whole party unless you put it on the whole party. It's 6 x 8% / # in party. If it's a 4 man, you're down to 12%. if it's an 8 man, you're down to 6%.

And it gets worse, that's presuming those buffs last the entire 3m. They last 15s. Sleeve Draw and Divination recast at 180s, so you get to do them once in 3m.

Assuming you can blast them out instantly (you can't), and compressing things so there's at least something of a compromise between accuracy and simplicity...

Window is 180s, so will be our divisor.
Fire Divination to give a 6% buff to all for 15s, then drum through Minor Arcana to drop 4x 8% buffs on everyone else, also for 15s. If they stack you've given 14% buff to 4 people for 15s. So +14% party DPS for 15s
30s later, you get a card again and can use it for a seal for 6% buff for another 15s, a total of 6 of them. That gets you 3*6% / 4 * 15s, or +4.5% party DPS for 15s.
Then you get 3 you can Minor Arcana, which gives you 3*8% / 4 * 15s, +6% party DPS for 15s.
So, 14% * 15s + 4.5% * 15s + 6% * 15s
(210 + 67.5 + 90) / 180s = ....

+2.04%? party DPS over 3m? That's for a 4-man. For 8 it's +1% party DPS.

Man, after that napkin math, cards don't even seem worth the trouble. I might just stop using them.