Yes, I am have a strategy about Devolution Spray and how it works in decks.You're probably laughing at me right now, but I'm doing this anyway.
 
    Devolution Spray works in four ways:
1. To change Resistance (Example: Dark Dragonite devolved to Dark Dragonair would change the Resistance from Fighting back to Psychic.) This hardly occurs, but at least it does.
 
2. To devolve a Poke'mon to evolve it to a different version of that Poke'mon (Example: Base Set Haunter devolved to Base Set Gastly, you can evolve it to Fossil Haunter instead.
    Devolve Rapidash to Ponyta, then evolve Ponyta to Dark Rapidash.)
 
3. To simply devolve a Poke'mon because its Stage 1 or Basic form is somewhat better than its Stage 2 form (Example: Dark Machoke, Team Rocket Mankey, Misty's Poliwhril, Weepinbell, etc.)
 
4. Heals of Sleep Confusion, Paralysis or Poison.
 
These are the only four ways I could find using Devolution Spray.
 
Until next time! - UltraMaster64.  Email me at kimvanib@caribsurf.com.
 
P.S : Pojo Rules!!!!!