You need to buy boosters for a few dollars and collect rare modern cards that you can resell in the future
Arcbound Ravager Brokkos, Apex of Forever Brokkos, Apex of Forever Craterhoof Behemoth Cultivator Colossus Deathmist Raptor Elder Gargaroth Felidar Sovereign Gahiji, Honored One Godsire Hauntwoods Shrieker Highcliff Felidar Hydroid Krasis Illuna, Apex of Wishes Illuna, Apex of Wishes Loot, the Key to Everything Loot, the Pathfinder Marath, Will of the Wild Nethroi, Apex of Death Nethroi, Apex of Death Nullhide Ferox Otrimi, the Ever-Playful Protean Hulk Questing Beast Rampaging Baloths Slippery Bogle Tayam, Luminous Enigma Uril, the Miststalker Woodland Bellower Yannik, Scavenging Sentinel
Graded Population Report: Zapdos [Reverse Holo] #29 Visualize the distrbution of grades in the chart
This way, a mere two copies was enough to reliably win the game if used carefully