Ravnica Allegiance Guild Kits include everything a player needs to represent their guild. Control the board with Isperia and the Azorius, or party with Rakdos and his eponymous guild. Smash with Gruul, plot with Teysa and the Orzhov, or experiment with the Simic. Or all the above. The decks are meant to be played against one another.
These cards are tournament legal in their respective formats.