Like most Magic: The Gathering cards, the value of Astral Cornucopia 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 (The Brothers' War Retro Artifacts)
Your only hope of ever laying eyes on one is if someone proposes in-game
Combined, these three cards make the strategy multifaceted, having different opportunities for different costing attacks
It primarily uses recent cards like Pikachu & Zekrom GX as its ideal way to put energy onto allies and strike with absurd damage, with format staples like Dedenne GX and Eldegoss V helping get energy across your team
The set will be the first of four spanning a major, climatic storyline that will draw old characters such as Ajani, Karn and Pia Nalar back to the forefront
Three mana is a little steep for a Thoughtseize effect, but the 3/3 body isnt messing around and if youre using creatures like Baleful Strix to set up ninjutsu then theres a lot of value to be had