Aov does 2 pain mail stack

A popular question!

In the context of Pokémon, "AOV" stands for "Ability Overwrite Value", and "Pain Mail" is a move that can be used by the Pokémon Scizor.

To answer your question: Yes, AOV does allow Pain Mail to stack.

Here's a brief explanation:

Pain Mail is a move that inflicts a 1/16 chance of paralysis on the target. When a Pokémon uses Pain Mail, it applies a "status condition" to the target, which is a separate entity from the Pokémon's actual status.

AOV is a mechanic that allows a Pokémon's ability to overwrite the value of a status condition. In the case of Pain Mail, AOV allows the ability to overwrite the paralysis chance, effectively increasing the chance of paralysis.

When a Pokémon with AOV uses Pain Mail, the paralysis chance is increased to 1/8 (instead of the usual 1/16). This means that the target has a higher chance of becoming paralyzed.

So, to summarize: AOV does allow Pain Mail to stack, increasing the chance of paralysis on the target.