Like most Magic: The Gathering cards, the value of Torrential Gearhulk depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Kaladesh Inventions)
This means that, eventually, you won't have to Ghostly Flicker the Island every time, and can instead target other things with ETB triggers for a bit of extra variety
Removed Feather
Like most Magic: The Gathering cards, the value of Omega, Heartless Evolution depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Final Fantasy)
It's got the same new mechanics like unearth and prototype as well as some of the digital-only mechanics you'd expect in an Alchemy set
1 Non-foil extended-art new-to- Magic card 1 Non-foil extended-art reprint Magic card 1 Traditional foil extended-art new-to- Magic card 1 Traditional foil extended-art reprint Magic card 1 Surge foil extended-art new-to- Magic card 1 Surge foil extended-art reprint Magic card 1 Surge foil wildcard Cannot be a showcase Pip-Boy variant, borderless Vault Boy, or basic land card