ex card pokemon TCG discard all Energy attached to this Pokemon. Pokémon ex (TCG) - Bulbapedia,

Logan Paul's Gem Mint 10 version of this card hit $16.49 million at Goldin earlier this year (see "Most Expensive Trading Card Ever Sold")

If you are looking to cast multiple relentless cards with a discount, you can rely on Semblance Anvil to make the rest of your cards cheaper

Cradle is the only real source of instant mana boost the deck has, everything else typically has summoning sickness

If youre playing your Cat deck correctly, that should be every turn, so this card is more or less an auto-include in a thematic Cat deck

a Character with a set cost or less"

While theyre definitely expensive, YourPlaymat offers custom sleeves and theyve got some pretty good reviews