Market prices for MEGA-era boxes range from ~$73 (Nihil Zero) to ~$90 (Ninja Spinner pre-order)
Mewtwo #51 Pokemon Evolutions Keep track of your collection value over time
This year also, my favorite goes to my wifes work, and that is Kaalia of the Vast by Livia Prima
The combination of better card stock, tighter centering, and cleaner printing gives JPN cards an edge

Without further ado, here are the Most Expensive Cards from Magic: The Gathering Assassins Creed Set so far: #1 Sword of Feast and Famine $22 #2 Excalibur, Sword of Eden $20 #2 Edward Kenway $11 #3 Black Market Connections $9 #4 Sword of Light and Shadow $8 #5 Ezio Auditore da Firenze $6 #6 Altar Ibn-LaAhad $6 #7 Brotherhood Regalia $5 #8 Caduceus, Staff of Hermes $5 #9 Cover of Darkness $5 #10 The Capitoline Triad $4 #11 Desynchronization $4 #12 Kassandra, Eagle Bearer $4 #13 Templar Knight $4 #14 Staff of Eden, Vaults Key $3 #15 Basim Ibn Ishaq $3 #16 Temporal Trespass $3 #17 Mjlnir, Storm Hammer $3 #18 Cleopatra, Exiled Pharaoh $2 #19 Reconnaissance $2 #20 Crystal Skull, Isu Spyglass $2 #21 Eivor, Wolf-Kissed $2 #22 Yggdrasil, Rebirth Engine $2 #23 Leonardo da Vinci $2 #24 Apple of Eden, Isu Relic $2 #25 Propaganda $2 #26 The Spear of Leonidas $1 #27 Bayek of Siwa #28 Overpowering Attack $1 #29 Senu, Keen-Eyed Protector $2 #30 Conspiracy $1 Thats it

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