All three card types work, though auras will give you a more long-lasting effect than an instant or sorcery
(If Leonardo, the Balance is one of your commanders, your deck may contain cards with any color or combination of colors in their color identity, regardless of who your other commander is.) Both commanders start in the command zone, and the remaining 98 cards of your deck are shuffled to become your library
12 tile trays included for modular mounting
Karn being a four-mana planeswalker that can draw you cards, protect itself provided you have artifacts, shut off opposing artifacts, and tick up to six loyalty the turn it enters the battlefield are all solid indications that it should find a home in Modern
The most interesting aspect of this is that one card spawned a new way of playing the game
The Ruinous PowersThe Chaos Gods wreak havoc across the galaxy, waging war with their corrupted, mutated armies