Raid This mechanic was used in Ixalan as a faction mechanic for Pirates (it was first a faction mechanic for Mardu in Khans of Tarkir )
Wither returns on Necroskitter and it's absolutely filthy when you pull it off
Gysahl Greens is basically an above average bear, but unless you're trying to go hard on some landfall aggro deck, it's unlikely to be all that good

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

Just as important as the plant wurm creature is the spell Nature's Rhythm
Right now PTCGO is only bringing in money indirectly