Another rant session gave me a neat idea: What would a format look like where your goal is to lose the game.
First things first, guidelines for bannings:
I think anything where you pay life and no other resource an unlimited number of times would have to be banned. This includes things like Yawg's Bargain and Griselbrand. You'd also need to ban any 0 mana you lose the game effects such as the Pacts.
Does a ton of Phyrexian spells just win?
Creatures change completely as you no longer want to threaten their life total.