Terenas Stand is a two player map made by Blizzard.
Currently there are two main versions of Terenas Stand, one for game versions prior to 1.29 (including W3Arena) and a new edition released with 1.29 (also played on NetEase). The latter is also known as Terenas Stand_LV.
Official Map Description
Noble countrymen, evil is upon us. Darkness has befallen our shores. Rise and slay thy enemies… strike, strike so others shall live. The meek shall not fade into the night… live my brethren, live.” –King Terenas