This means that Xancha will be causing problems for other players at the commander table regardless of whose she's attacking
Third, to cast it for free you need more artifacts than the cost of the spell and fourth, if you dont, you can only cast it with your own mana, which is usually Green, Blue and Red
There's also a list called the Game Changers list you'll find below that the brackets reference
The format originated in Toronto, Canada in the 90s and spread from there
They're meant to be easy on-ramps to EDH, but the new cards, ease of use, and powerful reprints make them favorites for even veteran players
it can be great with aristocrats to get a ton of sacrifice fodder, let you rebuy your best enters abilities, or even spread -1/-1 counters across your team for cards like Hapatra, Vizier of Poisons