mtg phyrexia all will be one commander decks Commander: Phyrexia: – Gamers Paradise Phyrexia: All Will Be One

I prefer it in decks with ways to flicker or sacrifice this red artifact to cards other than its own ability

Paradox Engine First Printed: 2017-JAN Banned: 2019-JUL Paradox Engine can be played in any deck, and creates large amounts of mana at little-to-no deckbuilding cost

For a discard theme, you also want ways to benefit from players discarding their cards

I would recommend getting the singles, since both Mystery Booster sets are pretty expensive, while most playtest cards cost under a dollar

Hoarding Broodlord is another excellent choice because when it ETBs, you can search up Reanimate and tap the Broodlord itself to cast it and get another Creature (almost) for free