Theres a chance this Gearhulk sees serious play in 60-card formats, and if it does it could stick around $10, or potentially even higher
lol Though really excited for new mechanics

Aggressive Mammoth Akroma's Memorial Altar of the Goyf Archetype of Aggression Arlinn, Embraced by the Moon Avatar Kyoshi Badgermole Bloodcrusher of Khorne Brawn Case of the Trampled Garden Centaur Chieftain Chronicle of Victory Domri Rade Ellywick Tumblestrum Embodiment of Fury Emil, Vastlands Roamer Ferocity of the Wilds Frostcliff Siege Full Moon's Rise Garruk's Uprising Garruk, Cursed Huntsman Giant Ankheg Gimbal, Gremlin Prodigy Groundshaker Sliver Gruul War Plow Jetmir, Nexus of Revels Kamahl, Heart of Krosa Khenra Charioteer Kobold Drill Sergeant Kodama of the West Tree Krang, Utrom Warlord Leonardo, the Balance Maul Splicer Maze Behemoth Neck Breaker Nev, the Practical Dean Nylea's Forerunner Nylea, God of the Hunt Old One Eye Orcish Siegemaster Overrun Overwhelming Stampede Paragon of Eternal Wilds Pathbreaker Wurm Pheres-Band Warchief Primal Rage Proud Wildbonder Rageblood Shaman Red XIII, Proud Warrior Roar of the Fifth People Roughshod Mentor Sabertooth Outrider Sphere Grid Stampeding Elk Herd Street Riot Sunrise Sovereign Surrak Dragonclaw Surrak and Goreclaw Tanazir Quandrix Temperamental Oozewagg The Very Soil Shall Shake Thornfist Striker Thunderfoot Baloth Towashi Training Regimen Ulvenwald Behemoth Vivien Reid Yuna, Hope of Spira

The Neo Destiny set came with eight secret rare Shining cards, including the Shining Charizard
The Capitoline Triad The Capitoline Triad needs some self-mill to be efficient, as a 7/7 creature you can cast for cheap
Be realistic, be upfront, and be willing to haggle