Whats the max corpses that can be burnt to fill the book and how many is it to level up the Ivandis Flail to do more damage? Figured I might as well do it for the rewards and for the upcoming quest this week.

You can burn as many as you like, but there are only 500 names in the book which contribute to upgrades.

You get upgraded with it every 50 corpses up to that 500 limit.

 

Also the upgrades seem to do more to you're accuracy than max hits. Maxed flail only seems to hit ~100 more than un-maxed, but it hits a lot more consistently.

Cool, averaging 20 a trip atm.

You can use a bob to carry the logs so you can carry the bodies in your inventory.