Again, it wont be too expensive to start with due to it being readily available, but it may grow in price over time
The deck then adds a number of cards that provide powerful synergies, either to increase the number of lands played each turn, or to make these creatures stronger

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

I am posting some ideas for the sphere archetype