If you dont mind sacrificing an arm and a leg to pay Reserved List prices, you can play Gauntlet of Might
Once per turn, when your opponent activates a card or effect, while this card is in your Monster Zone (Quick Effect): You can destroy as many cards your opponent controls as possible, then Set this card in your Spell & Trap Zone
In exchange for using up your Supporter card for the turn, you can use Cherens Care to pick up a damaged Colorless Pokmon and all cards attached to it from your field, denying your opponent the opportunity to take easy Prize cards from its knockout
Cards that fill multiple roles help your deck function smoothly at different points in the game
That's what healer cards are for
One of the best synergies in the deck is Cloud, Midgar Mercenary with Buster Sword