If a creature's power is less than 0 when it's doubled, instead that creature gets -X/-0, where X is how much less than 0 its power is
As with most land centric decks these days, it creates a bevy of tokens when these effects go off among other triggers
Of course the official rules should always be the base to start upon and they can be found here, but even those rules can be modified by playgroups according to their needs and can lead to much better gaming experience
Both sported an opalescent sheen: Each booster pack of 30th Celebration will contain six cards instead of the usual five -- all foil -- meaning all cards in the set will be foil
Primarily, Dungeon-matters cards are found in the Esper colours of white, blue, and black
Pauper Izzet Skred: Deck philosophy, deckbuilding, card analysis I tried three different lists in my three different events, and I still think I could submit a better deck