Mountain (Secret Lair Promo) — Market vs Foil: which is worth more?
Mountain (Secret Lair Promo) value — Market $4.49 vs Foil $32.27. Foil sells for 7.19× Market (+619%). Prices updated August 2026.
Medians of real sold listings per condition, updated August 2026 — how we compute values.
Market vs Foil
$4.49→$32.27
Foil sells for 7.19× (+619%) the Market price — a $27.78 difference per card.
Is complete worth it?
Foil $32.27 vs Market $4.49 — a $27.78 premium (+619%). If you're holding the box and manual, completing a loose copy pays when that premium beats what the missing pieces cost you.
Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).