If you are strictly looking to play a combination of low-cost cards in a non-mainstream deck build, I would like to suggest Generations/Radiant Collection Froslass. It uses colorless energy only so it can be added to any deck, it has a very generalized utility attack, and it's ability makes it a very annoying staller in pretty much any deck. My wife and I have many extra decks on the side that purposely exclude any EX pokemon, so we can keep the game more light-hearted and fun, but her Creep Show plus Froslass stall deck is quite infuriating after you have an excellent set-up over many turns, only to instantly lose it to a coin flip. This card is a holo-uncommon, and sells for around $0.25.
