Quarantine Field isn't working. Looks like there are a bunch of streamer graphics flying towards the cards in Greg's hand... But not mine. Maybe it only works on him.
2 screenshots here taken from a game in Rising Tension. The first showing Quarantine Field in play, the second showing Niv-Mizzet in my hand with it's usual cost of 20.
Someone just pointed out to me that Niv-Mizzet can't have his mana drained or raised, so please disregard this bug