The full card list for Glory Of Team Rocket isn't available yet, but here are the Secret Rares that have been revealed so far
Scarlet & Violet151 ex BoxZapdos ex Available Oct
chibp on Bouncing Niko 1 year ago Coward_Token on The Reunion At Last - Sephiroth V1 1 year ago You've probably already thought of Grave Pact
You'll see many pro players build their decks with fetch lands such as Windswept Heath and Wooded Foothills and battle lands such as Canopy Vista
For regular upgrades I highly recommend: Vito, Thorn of the Dusk Rose, Mondrak, Glory Dominus, Anointed Procession, Parallel Lives, Eerie Ultimatum, and you can also run the Cat Oven combo with Cauldron Familiar + Witch's Oven + Clock of Omens, and there's the Ballista Combo Heliod, Sun-Crowned + Walking Ballista, and finally the Exquisite Blood Combo since the deck already runs the other piece Sanguine Bond One Down, Three to Go