Lydia has a UMD of 8, and I could probably swing another point or two to get it a little higher.<br/><br/>I would be against replacing a character once it's been selected, mainly because said character was selected based upon it's appeal. I think that it would open up things again to other players who would quickly offer other arcanist in a bid to replace the altered character. Since no one offered one to begin with.... except for the offer to offer one... I think that we'll just have to make do with what we have.<br/><br/>Just my thoughts and the GM is completely free to accept the fore mentioned offer.