Like most Magic: The Gathering cards, the value of Impending Doom 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 (Theros Beyond Death)
Key chase cards include Umbreon #85, Espeon #81, Sylveon #83, Glaceon #77, Vaporeon #75, Flareon #73
Circles are common, diamonds are uncommon, and stars are rare
All Will Be One #118 (Magic Phyrexia: All Will Be One | Magic Cards) prices are based on the historic sales
Judge's Comments It was easy to imagine how it would swoop down from the sky and create a sandstorm
It arrives untapped, taps for colorless, then taps with just two to force everyone to draw, discard too so everyone Loots one (Merfolk Looter)