Cards at risk for removal for being too powerful or oppressive, pending playtesting:

• all five planeswalkers
• mass mana denial (jokulhaups, infernal darkness, nether void, ritual of subdual)
• one-sided wraths (fire covenant, rain of daggers, hellfire, righteous fury)
• various control magic effects
• zur's weirding
• pattern of rebirth
• priest of titania
• verdant force
• forcefield
• null brooch