Ok....so everyone has played a game where a certain enemy player/hero has REALLY got to you with how arrogant he was and you would do ANYTHING to sword his face in 1v1 to restore your pride and honor.
So heres the feature we all know we want
At the end game chat/stat screen, you right click on THAT GUY who rode your a$$ that whole game and select challenge.
He then gets and invite to a 1v1 battle arena with your heroes AS THEY WERE at the end of the last game, except with full HP and mana. (builds included but any buffs removed)
Everyone from the game also gets the memo and are invited to VIEW the battle.
The battle plays outs in the arena and winner gets all that other players IP points from the last game as well as +1 to his profile stat for honor battles. This stat should be viewable when you mouse over a player much like where you mouse over to see Lv/Wins/Left stats.
...come on please??