This doesn't mean you should buy the decks to profitthat's unlikely to work, since Wizards upped the supply of Commander decks after the True-Name Nemesis debaclebut it does mean that a lot of expensive, powerful, and fun casual cards are going to get cheaperway, way cheaper
You have to list each card, monitor prices, and process sales
Onslaught was set on Dominaria, but after the plane-shattering events of Invasion block and on a remote continent called Otaria

Most Expensive Cards From Evolving Skies Surprise: Most Are Eeveelutions Here are the cards from Evolving Skies with the highest value , according to listings on TCGPlayer: Umbreon VMAX Alternate Art 215/203: $1,672.74 Rayquaza VMAX Alternate Art 218/203: $703.98 Leafeon VMAX Alternate Art 205/203: $418.27 Sylveon VMAX Alternate Art 212/203: $397.52 Glaceon VMAX Alternate Art 209/203: $319.63 Umbreon V Alternate Art 189/203: $249.65 Dragonite V Alternate Art 192/203: $207.82 Rayquaza V Alternate Art 194/203: $184.58 Espeon V Alternate Art 180/203: $177.49 Glaceon V Alternate Art 175/203: $141.01 Sylveon V Alternate Art 184/203: $138.49 Leafeon V Alternate Art 167/203: $129.49 Rayquaza VMAX Rainbow Rare 213/203: $51.18 Umbreon VMAX Rainbow Rare 214/203: $51.01 Sylveon VMAX Rainbow Rare 211/203: $42.52 Interestingly enough, these cards actually popped up in price in 2025
Amazon Japan is one of the most popular places we help ship items from, not just Pokmon cards
This sort of collection has recently been hugely popularized by videos from DeepPocketMonster, such as his multi-part Collect Every Gengar Ever series