Name: Mini-Arceus
Description: A Pokemon that, before battle or during battle, is able to willingly change its type either through the use of Ability, Item, or even a Move.
Justification: Let's face it, everytime Gamefreak wants to do something different or unique with a Pokemon's type either through ability, item or move, it comes out either sorely underpowered (Camoflauge, Kecleon), or superly overpowered (Arceus). I want to know if it is possible to both manually and predeterminably change a Pokemon's type without it becoming overpowered or underpowered. ie: if there really is a middle ground.
Questions to be answered:
~ Is a Pokemon like this viable? Will it come out too overpowered?
~ What type will most people choose, and why? Is there really an overdominate type in the metagame? Or has there simply not been a good enough Pokemon in a certain type to help it dominate, and in effect, is there an anti-metagame type?
~ What role would such a Pokemon play in the metagame? Supporter, Sweeper, or Wall? And in effect, what kind of play would dominate the metagame if it's able to do such a thing? Stall, Balanced, or Heavy Offense?
~ How will people react to such a Pokemon? Would people become over-cautious and would stall dominate? Or, would people simply attack with abandon to quickly get rid of it and not wait to see what role it's playing?
Explanation: I know what most people are thinking when they read this. "Yah right, anything like that would be way too overpowered no matter what you did with it."
Well, that's what I want to find out. I think this type of concept is really open-ended in the way people would go about creating this thing. Would people want a Supporter, Sweeper, or Wall? I personally would think it should be balanced enough to fill any role, but what kind of Stats would balance out the ability to willingly change its type beforehand?
I think the best way to change its type would be to make it hold an item, (in my opinion it should be the Plates Arceus uses), thereby lessening the sheer amount of predicting an opponent would have to do when facing such a creature, but as I said, the way of creating this thing would be left to the community.