Amazingly, Champion of Wits is arguably better with Naban, Dean of Iteration than it is with Panharmonicon for a couple of reasons
It also gives you mana towards them, in increasing quantity each time
if you're ahead, it will help you apply even more pressure to your opponent
Keep in mind that, although Adventure cards are creatures the majority of the time, which means you can't tutor for them with cards like Solve the Equation, when you cast the Adventure side of it you are instead casting an instant or sorcery
We've been able to cast Regrowth and Raise Dead since Magic 's earliest days, but only relatively recent have we been given options to play lands directly from the graveyard, instead of our hands
Read: Everything announced at Wizards Presents Heres the first look at one of the new cards coming to Phyrexia: All Will Be One : Atraxas Skitterfang