Corrosive Mentor (Shadowmoor) — Market vs Foil: which is worth more?
Corrosive Mentor (Shadowmoor) value — Market $6.90 vs Foil $16.11. Foil sells for 2.33× Market (+133%). Prices updated August 2026.
Medians of real sold listings per condition, updated August 2026 — how we compute values.
Market vs Foil
$6.90→$16.11
Foil sells for 2.33× (+133%) the Market price — a $9.21 difference per card.
Is complete worth it?
Foil $16.11 vs Market $6.90 — a $9.21 premium (+133%). 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).