Turmoil on a Zerker? Worth it?

Im currently a 44 pray zerker, with 45 def, and double xp weekend is coming up. Is it worth getting turmoil on a zerker? Cause of the def, that will go from 45 to 48, (1 combat), and the extra combats from 95 prayer?

 

It depends how much you care about the aesthetics of your account, if you like your stats to look clean, then don't.
1 extra combat level isn't that much and the combat levels obtained by getting 95 Prayer are far outweighed by the effects of turmoil, in my opinion.

If you can afford it, go for it.

 

Exp doesn't stack on alters and guilded alter + light is more then 2.7x exp. So you still need the 200m. Also it is worth it, if you have the cash.