# 2021 Magic: The Gathering Jumpstart: Historic Horizons #529

> Unholy Heat is a 1-mana Red Instant from the 2021 Magic: The Gathering Jumpstart: Historic Horizons set, offering a versatile damage option for collectors.

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## Identity

- **Year**: 2021
- **Manufacturer brand**: Magic: The Gathering
- **Set / series**: Jumpstart: Historic Horizons
- **Card number**: #529
- **Product type**: TCG_CARD

## Description

Unholy Heat, designated as card number 529, is a core component of the Jumpstart: Historic Horizons expansion released by Wizards of the Coast in 2021. This Magic: The Gathering trading card game card features a mana cost of {R} and functions as an Instant, allowing players to interact with the board immediately. The card’s primary effect deals 2 damage to a target creature or planeswalker, providing essential removal in many deck archetypes. If a player controls four or more card types in their graveyard, Unholy Heat deals 6 damage instead, significantly increasing its impact. Illustrated by Kari Christensen, the card is classified as a Common rarity within the set. Its straightforward design and powerful effect make it a staple for players who enjoy aggressive red strategies. The Jumpstart: Historic Horizons format revolutionized how players experience the game by offering pre-constructed, double-sided decks that blend Standard-legal cards with mechanics from older eras. For those building a comprehensive collection of Jumpstart releases, Unholy Heat represents a key piece of the set's identity.

## FAQ

### What is the mana cost of Unholy Heat?

Unholy Heat has a mana cost of {R}, requiring a single red mana to cast. It has a mana value of 1, making it one of the most efficient removal spells in the game.

### How does the Delirium mechanic work on this card?

The Delirium ability triggers if there are four or more different card types among cards in your graveyard. When this condition is met, Unholy Heat deals 6 damage to the target instead of its base 2 damage.

### Who illustrated Unholy Heat in Jumpstart: Historic Horizons?

The card was illustrated by Kari Christensen. The artwork appears on the front of the card, which is part of the standard layout for this 2021 release.

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Last verified: 2025-11-29.