Previous sets have introduced new mechanics, such as Locations in Into The Inklands
Prince John, Phony King, is also an excellent deterrent for your opponents to attempt to gain more lore than you whilst the card is out, as you can very quickly nab it away from them the next turn
4WW, T: Exile Dion, then return it to the battlefield transformed under its owner's control
The strength of Oppression comes from how quickly it drains hands, and how it won't affect you since you draw so much
That also keeps other characters from questing the rest of the turn too, so you just have to weigh your options when figuring out the best approach on any given turn
If future sets introduce powerful tools to this archetype, this card will naturally skyrocket in demand as the indispensable tutor engine