Err. Will your PC's belive this? If it was me, I'd load for bear and go a lich-huntin'. PC's have plot-sense and foreshaodwing-detection skills like you wouldn't believe.
What does Lichy McLichypants want with Reformo the Master Wizard? Is he taking him to the Evil HQ for revillianification? Back to the lair for tea, crumpets and severed baby seal heads? Force him to take aprt in the torunament?
Card game could be cool - makes a nice change from all the Chess For The Fate Of The World
Give Lichy a few ranks of Sleight of Hand (and plenty of Prof : Gambler) and have him always fiddling with a deck of cards, shuffling and performing tricks ("so, you're an archmage?" "Yup. Pick a card, any card..."). Plus, he already has a reputation as a cheater.