[Endoperez]

The arena is a spesific one. You may send any commander there, via the "Compete in Arena Deathmatch" commander order available during that single turn. You can only send one champion, and he'll compete against other nations' champions. All matches are fought to death, and the price is lots of experience and a two-handed Trident that bestows the wielder Quickness and can't be removed. The wielder Champion's Trident will be forced to take part in any future Arena matches.