Well obviously it improves against them all, but the improvement would only be worthwhile against the three FG's I mentioned since I have no problem with the others (except when hermes gets a protected shield out, that f's me lol). So it's not high on my priority list at the moment. Like I said though, I'm looking at the necro-rainbow and I'm pretty sure it has supernovas in it... although I may be confusing it with the many other decks I've looked at lately.