Approved by Eevee General
Definitely Not Aegislashmons
Ah, Battle Stance. In this metagame, every Pokemon has two distinct battle stances, which will swap their offensive stats with their defensive ones based on the stance they're currently in.
Definitely Not Aegislashmons
When your Pokemon join the fray, they will be on their Standard Stance. While in Standard Stance, also known as Defensive Stance, Pokemon will have their normal stats and the battle will continue normally as long as your Pokemon doesn't use any offensive moves...
It is when you decide to raise the flag and strike your opponent's Pokemon directly (through the use of a move in the Physical or Special category) that your Pokemon will take on the Reverse Stance. While in Reverse Stance, which may be commonly called Offensive Stance, your Pokemon's Attack and Special Attack stats will be swapped with their Defense and Special Defense stats, respectively.
Pokemon can be brought back to their Standard Stance by switching out or using the moves Protect, Detect, Spiky Shield or King's Shield. Quite a similar effect to the one the ability Stance Change has on the Pokemon Aegislash.
Naturally, some Pokemon will be turned upside down by this Metagame! Pokemon like Ferrothorn and Shuckle are subject to raise their ranks, while common offensive Pokemon like Landorus-T and Scizor will get substantially weaker at performing the role of attackers. Some Pokemon might even find a new niche, such as Special Attacker Kecleon!
Standard OU Bans and Clauses will apply. Bans/unbans will be done as necessary.
As a final note, yes, Aegislash is not affected by the Stance Clause, which makes him as good as he is in normal OU, but his current placement in Ubers will not allow him to join his own game. :/
Special thanks to the Pet Mod Aegislash'd by unfixable, as although I wasn't aware of it until I submitted this, it still gave birth to stances.