As much as it pains me to say it, it's pretty decent for Blue Mage, If.. and only if, Physical Blue Magics accuracy is based only on the weapon type in the main hand. I'm not entirely sure if it is or not, but if it isn't, the Conserve MP+7 could be pretty handy for BLU on a slot thats only usefulness for BLU is ultimately to increase stats. But remember, this is if the sub weapon has no bearring on Blue Magic, aside from an increase in stats. It's also 27/217. Thats almost Misericorde-like damage ratio. Far better than a lot of clubs.