If you had to guess, youd probably have determined that there will be one card for every two-color pair
Incapsula incident ID: 1815000760831286834-390942363080921905
(Happy Dreams Stamp Set) Kudos to you for not getting kicked out of college
The Evolutions Base Set tribute trio (M Charizard EX FA, M Blastoise EX FA, M Venusaur EX FA) is best collected as a unit at ~$147 combined raw

Limited Cards You may only have one of these cards in your deck: Left Leg of the Forbidden One, Right Leg of the Forbidden One, Left Arm of the Forbidden One, Right Arm of the Forbidden One, Exodia the Forbidden One, Dark Hole, Raigeki, Sinister Serpent, Megamorph, Harpie's Feather Duster, Jinzo, Monster Reborn, Pot of Greed, Change of Heart, Mirror Force, Snatch Steal, Confiscation, The Forceful Sentry, Painful Choice, Call of the Haunted, Cyber Jar, Ceasefire, Imperial Order, Magic Cylinder, Limiter Removal, and United We Stand Semi-Limited Cards You may only have up to two of these cards in your deck: Sangan, Swords of Revealing Light, Witch of the Black Forest, Bell of Destruction, Graceful Charity, Heavy Storm, Delinquent Duo, Backup Soldier, Nobleman of Crossout, Morphing Jar #2, and Riryoku You may have up to three of all of the other cards, not listed above, in your deck