From Archon Arcana
Furtive Investors • Shadows • Action • Common • Play: If your opponent has more than you, gain 1 for each key your opponent has forged. • Artist: Fábio Perez • Card Number: AoA (269)
In a previous turn, I played a Key Hammer to unforge my opponent's first key, leaving them with zero keys currently forged. On my current turn, I play Furtive Investors, do I get to gain an Æmber for the key they had forged but I unforged?