This is probably open for debate regarding the use of exp cap remover, many don't consider it to be a cheat since it allows the player to benefit from using his/her PC for more than 1 game. True you can create a very powerful character, but it is from the legit experience you have earned during the course(s) of the game. This is of course provided you did not hack the exp points, otherwise you are cheating yourself. That's just my 2 cents.
Against normal lichs, my cleric do the spell casting (although mage will have true seeing on) while my tougher tanks hack away. Against demi-lich, my berserker/mage does the hacking while my other party memebers go hiding.
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Long live H22A1!!!!!