Game Features: PvP Arena

[Gilbert Beilschmidt]

Depending on how the first week or two goes for this thing I am debating adding a PvP arena where characters can fight each other in 1v1 and 3v3 battles. It might not be necessary if player verus player action occurs often anyways. However if pvp is something everyone avoids then arenas can make it fun, "safe" (as in you get magically knocked out if you lose all HP), and will give the participants rewards in the form of items and money.
Feedback is greatly appreciated.