They all look great! And I plotted down the proper superpowers from my database (jake555555555) for each character:

. High Card's powers: Similar to Diana Prince/Wonder Woman (Sunset Shimmer's Cosplays folder)



. Eleven of Hearts' powers: Similar to Zatanna Zatara/Zatanna (Sunset Shimmer's Cosplays folder)[Minus Reality Alteration]



. Night Club's powers: Similar to Dinah Lance/Black Canary (Sunset Shimmer's Cosplays folder)



. Luan the Joker's powers: Same as Common Mutant Powers to Villains (Supervillains and Criminals folder)



. Strong Suit's powers: Similar to Common Mutant Powers to Villains (Supervillains and Criminals folder)[Plus Remy LeBeau/Gambit's powers]



. Ace Savvy's powers: Similar to Bruce Wayne/Batman (Batman's Powers in My Fantasy World)



. One-Eyed Jack's powers: Similar to Peter Parker/Spider-Man [Plus Organic Webbing Generation]



. Eight of Spades' powers: Similar to Rachel Roth/Lady Legasus (Other Heroes folder)



. Royal Flush's powers: Similar to Kon-El/Superboy



. Queen of Diamonds' powers: Similar to Kara Zor-El/Supergirl



. Card Counter's power: Similar to Jean Grey/Phoenix (Sunset Shimmer's Cosplays folder)[Minus Reality Warping]



. Deuce's powers: Similar to Logan Howlett/Wolverine



P.S. - Instead of "the Joker", Luan's hero name should be "Harley Quinn".