By purchasing Scarlet and Violet: Twilight Masquerade Pokemon TCG Live codes you can possibly acquire the following cards: Dragapult ex, Magcargo ex, Greninja ex, Luxray ex, Blissey ex, Sinistcha ex, Screaming Tail ex, Bloodmoon Ursaluna ex, Iron Thorns ex, Ogerpon ex, Carmine, Caretaker, Hassel, Kieran, Lanas Care, Enhanced Hammer, Lucky Helmet, Buddy Buddy Puffin, Rescue Board, Legacy Energy, Scoop Up Cyclone, Secret Box, Survival Brace, Unfair Stamp, Boomerang Energy
(You may cast cards from your graveyard for their escape cost.) If The Master of Keys is no longer on the battlefield when its second ability resolves, you'll still mill twice X cards
As a general rule, Im happy if I draw cards equal to these cards mana cost, but am ok with drawing one less
Just far too slow to be useful removal and far too low power when not killing things
It would take a lot for any of these cards to increase in value, so trade them into other staples