Corrosive Mentor (Shadowmoor) — Market vs Foil: which is worth more?
Corrosive Mentor (Shadowmoor) value — Market $6.76 vs Foil $17.87. Foil sells for 2.64× Market (+164%). Prices updated September 2026.
Medians of real sold listings per condition, updated September 2026 — how we compute values.
Market vs Foil
$6.76→$17.87
Foil sells for 2.64× (+164%) the Market price — a $11.11 difference per card.
Is complete worth it?
Foil $17.87 vs Market $6.76 — a $11.11 premium (+164%). 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).