The expanded format is quite interesting, you may combine XY with Black & White cards. So I was looking for a way to abuse Devolution Spray and I came up with this idea:
You have the Colorless Mega Rayquaza EX with the ancient trait ability Delta Evolution and another Mega Rayquaza from Ancient Origins that has the ancient trait ability Theta Max.
Now if you have a damaged basic Rayquaza EX you could evolve it into the Theta version. This way you will heal ALL damage counters from it. Next you devolve it using Devolution Spray. It states that you can't evolve it this turn. However, the Delta version states you can evolve it during the first turn or the turn you played it.
If the Devolution Spray rule works like this: The devolved Pokémon counts as a Pokémon that was put into play this turn. Then this method should be possible. But it simply states that you can't evolve it. so I guess It's not possible.
It would be awesome though because basically it works like a Max Potion, only you don't have to discard all energy attached to it and you erase all status conditions.
http://cdn.bulbagarden.net/upload/7/79/MRayquazaEXAncientOrigins98.jpg
http://cdn.bulbagarden.net/upload/0/03/MRayquazaEXEmeraldBreak86.jpg
http://cdn.bulbagarden.net/upload/6/6a/DevolutionSprayDragonsExalted113.jpg
You have the Colorless Mega Rayquaza EX with the ancient trait ability Delta Evolution and another Mega Rayquaza from Ancient Origins that has the ancient trait ability Theta Max.
Now if you have a damaged basic Rayquaza EX you could evolve it into the Theta version. This way you will heal ALL damage counters from it. Next you devolve it using Devolution Spray. It states that you can't evolve it this turn. However, the Delta version states you can evolve it during the first turn or the turn you played it.
If the Devolution Spray rule works like this: The devolved Pokémon counts as a Pokémon that was put into play this turn. Then this method should be possible. But it simply states that you can't evolve it. so I guess It's not possible.
It would be awesome though because basically it works like a Max Potion, only you don't have to discard all energy attached to it and you erase all status conditions.
http://cdn.bulbagarden.net/upload/7/79/MRayquazaEXAncientOrigins98.jpg
http://cdn.bulbagarden.net/upload/0/03/MRayquazaEXEmeraldBreak86.jpg
http://cdn.bulbagarden.net/upload/6/6a/DevolutionSprayDragonsExalted113.jpg