Altar of the Brood (Halo Foil) Price

Updated 2026-08-16

Altar of the Brood in the Halo Foil treatment from the Secret Lair Countdown Kit is the most premium version of a Commander mill combo piece: a one-mana Artifact that mills one card from each opponent's library every time any permanent enters the battlefield under your control. In Commander with three opponents, each trigger mills three cards total, enabling significant accumulation in token and blink strategies over the course of a game. The Halo Foil treatment is specific to the Countdown Kit product and was not available through normal Secret Lair ordering, compressing supply relative to typical Secret Lair singles. Thirty-day price appreciation reflects steady Commander demand from mill and combo players. Supply is fixed at the Countdown Kit print run. Watch for reprint risk in any supplemental product targeting Commander combo staples, which remains the primary ceiling on this specific foil treatment's premium over standard copies.