# 2023 Magic: The Gathering Secret Lair Promo #4

> The 2023 Magic: The Gathering Secret Lair Promo card featuring Unholy Heat, a rare foil Instant card with powerful graveyard synergy.

Canonical URL: https://supercatch.com/product/magic-the-gathering-secret-lair-promo-unholy-heat-4-foil

## Identity

- **Year**: 2023
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Secret Lair Promo
- **Card number**: #4
- **Product type**: TCG_CARD

## Description

Designed by artist Cabrol, this foil treatment highlights the card's red mana identity and high-impact gameplay. As a Secret Lair drop, this release offers a distinctive collectible for enthusiasts of the TCG who appreciate unique promotional art and special finishes. Unholy Heat is a versatile card that deals 2 damage to a target creature or planeswalker. Its true power emerges through the Delirium mechanic, which triggers when four or more card types are among cards in your graveyard. Under this condition, the spell deals 6 damage instead, making it a formidable tool in competitive and casual play. Collectors value this card for its strategic utility and its place within the growing Secret Lair catalog. For traders and investors, this promo card represents a specific moment in Magic's ongoing evolution. The foil finish adds visual appeal, while the card's rules text provides lasting relevance in decks built around graveyard strategies. Whether you are building a set of Secret Lair promos or focusing on rare Instant cards, this piece offers significant collector appeal. ## What is the Secret Lair Promo series in Magic: The Gathering? The Secret Lair Promo series consists of unique, limited-edition cards distributed through special drops rather than standard booster packs. These cards often feature alternative artwork and exclusive foil treatments, making them highly desirable for completionists and TCG enthusiasts. ## How does Delirium affect Unholy Heat gameplay? Delirium is a mechanic that activates when you have four or more different card types in your graveyard. For Unholy Heat, activating Delirium increases the damage dealt from 2 to 6, significantly enhancing its ability to remove powerful creatures or planeswalkers. ## Is Unholy Heat considered a rare card in the Secret Lair drop? Yes, the Unholy Heat promo card is classified as Rare within the Secret Lair Promo set. Its foil finish and specific card number (4) make it a distinct collectible for those tracking the progression of Secret Lair releases.

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Last verified: 2025-11-29.