heh, i recall the time when i played the world of warships (a way too greedy and shit game btw)... air carrier players (always mirror matched) sometimes made an agreement not to attack each other and to farm other ships, and air carriers it were death from above with little to no defence for the most of the ships. only some cruisers could repel an attack with their aa, most of battleships died under properly made manual torpedo drops like flies and dd could survive only if they managed to dodge torpedo cross drops, which wasn't easy at all, and to survive dive bombers you should be just lucky. i mean it was understandable, trying to snipe each other and generally to fight each other for them was much more nerve-wrecking than for the rest of the ships, and the repair bill for them was huge, but it was completely infuriating for the rest i.e for us (i mained destroyers). so, you know what we did except complaining/reporting? too bad it's impossible in the league. we often simply sunk them with friendly fire on an attempt to make such an agreement, the automatic punishments for that weren't very bad, especially for dd (their torpedoes killed allies regularly, they were like stone cold killers filling the sea with death)
so, what i mean, i am strongly against any agreement with the enemy, especially when they have a hard scaling guy like nasus