Grinning Demon (Onslaught) — Market vs Foil: which is worth more?
Grinning Demon (Onslaught) value — Market $4.11 vs Foil $26.00. Foil sells for 6.33× Market (+533%). Prices updated August 2026.
Medians of real sold listings per condition, updated August 2026 — how we compute values.
Market vs Foil
$4.11→$26.00
Foil sells for 6.33× (+533%) the Market price — a $21.89 difference per card.
Is complete worth it?
Foil $26.00 vs Market $4.11 — a $21.89 premium (+533%). 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).