Among the cards that have risen in value include an alternate art Kaido, the showcase version of Overlord of the Hauntwoods, and the fracture foiled iteration of the Overlord of the Floodpits
I don't believe this iteration on Niv-Mizzet is as powerful as some previous versions of the creature, but that isn't keeping the Dragon Wizard's price down all that much
Modal Dual Faced Cards (MDFCs) Modal double-faced cards are tricky to balance, especially with the inclusion of so many mono-colored MDFC lands from Modern Horizons 3 that allow you to pay life to have them enter untapped, along with hybrid cards that are a tapped dual land on the backside
however, the specifics are not public
There are other cards that supply some card draw
Clearly, the premium for doing this is quite steep