THIS ISN'T MY IDEA, BUT IT'S A FRIEND IDEA THAT WANTED TO POST THIS SUGGESTION, BUT DOSEN'T HAVE A FORUM ACCOUNT
A item in the IM that could change your class in the ''category''.
Cleric <-> Mage
Knight <-> Champion
Etc <-> Etc
(A ingame version should also be available)
When you use this coupon or item, your skills/stats will reset also.