/arenalog or /al - Display a command list

/al reset - Resets accumulated data.
Use /al reset 2v2, 3v3, or 5v5 to reset data only for a particular team bracket.

/al history [bracket] [#] - Displays last # games played in bracket (2v2, 3v3, 5v5)

/al browser - Toggle the browser display on/off. This can also be accessed by using a keybinding found in the Blizzard key binds interface, or by clicking the "View History" button on the PvP Team Details window for one of your teams.