Heroic Intervention (Core Set 2021 Promos) — Market vs Foil: which is worth more?
Heroic Intervention (Core Set 2021 Promos) value — Market $15.51 vs Foil $13.77. Market sells for 1.13× Foil (+13%). Prices updated August 2026.
Medians of real sold listings per condition, updated August 2026 — how we compute values.
Market vs Foil
$13.77→$15.51
Market sells for 1.13× (+13%) the Foil price — a $1.74 difference per card.
Is complete worth it?
Market $15.51 vs Foil $13.77 — a $1.74 premium (+13%). 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).