Since this is the last week of Dean's Chamber in expedition.
Lystia is pure stupidity. Here is a pretty good list that features tons of strong units that can mostly ignore Dean's Chamber:
Big Praxis. Note that exactly 0 cards in that deck can remove her. The amount of time she can buy vs T midrange is pure nonsense, and by the time they can board a field that can go around, you'll have Bauble up and the game is a formality.