Originally posted by Krel Backstabba:

So I wonder this - will a multiclassing character get to keep his original stats or will he get new ones right away? If I say train my engineer to become cavalrymen, will he lose any energy/gain movement points?

He won't lose any stat gains from levels accumulated up to that point--but his stats will likely still change, as he'll lose the old class's base stat bonuses in favor of the new class's base stat bonuses.

(All of which is a fancy way to say: yeah, he'll probably lose some energy and gain some movement. 😅)

I see. So I would need to get lucky to have an energetic Mechanic..

It is unfortunate there is no Wiki as I can't check what I am missing, but I will likely train my Mechanic to be an archer, so it will not promote to advanced role.

Edit - ended up upgrading the mechanic even though he himself wanted to be an archer. Got really close before any opportunity to go to the trainer. Ye, should have agreed to make him archer, these advanced classes aren't bad, but I mostly needed movement speed which as an archer he would get anyway.