What are the abilities of Xenagos, the Reveler?
user
[+1]: Add X mana in any combination of {R} and/or {G}, where X is the number of creatures you control.\n[0]: Create a 2/2 red and green Satyr creature token with haste.\n[−6]: Exile the top seven cards of your library. You may put any number of creature and/or land cards from among them onto the battlefield.
assistant