Cards related to "Gloom".
The release of Pokmon VS and Pokmon Web in 2001 marked the beginning of Japanese First Edition Pokmon Card runs
And, if those creatures dont survive in the long run, you can eventually use the Equipment cards (that stick around) to close out the game
Flavor Text "The more secrets you have, the more easily you become my pawn." P/T Number 43 Language English Legal Formats Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Rulings (7/12/2019) Gaining control of a creature doesn't cause you to gain control of any Auras or Equipment attached to it
Its easy to fall far behind if your opponent steals a Mayhem Devil and gets to clear your board before sacrificing the Mayhem Devil as well
Granted not all of them are guaranteed to increase your win rate (though most of them likely would), but they are guaranteed to make your entry fee in the event effectively much cheaper