By buying Pokmon 151 PTCG Live codes, you can possibly acquire the following cards: Venusaur ex, Charizard ex, Blastoise ex, Pikachu, Ninetales ex, Wigglytuff ex, Vileplume, Meowth, Alakazam ex, Golem ex, Gengar, Kangaskhan ex, Chansey, Starmie, Jynx ex, Gyarados, Ditto, Eevee, Zapdos ex, Dragonite, Mewtwo, Mew ex, Erikas Invitation, Giovannis Charisma, Illustration Rare Charmander, Illustration Rare Squirtle, Illustration Rare Bulbasaur, Full Art Charizard ex, Full Art Blastoise ex, Full Art Venusaur ex, and more
Technically you can farm cards for free if you are good enough
I would cast Cunning Wish and grab Mudhole and play it as an instant to slow that engine down
Command Beacon can help you put Lumra back in your hand and avoid the Commander Tax, while Mirrorpool can copy key pieces or help create additional Lumra-style value without paying full price every time