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Unholy Heat deals 2 damage to target creature or planeswalker. Delirium — Unholy Heat deals 6 damage instead if there are four or more card types among cards in your graveyard.
Abilities, attacks, weakness & resistance
Other cards from Secret Lair Showdown
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Unholy Heat (SLP-4 foil) is a one-mana red instant from the Secret Lair Showdown set that can target a creature or planeswalker. It normally deals 2 damage but has Delirium to deal 6 damage if you have four or more card types among cards in your graveyard. The card is playable as a cheap removal or reach spell in aggressive or control decks that can reliably enable Delirium.
Catalog pricing data as of 17 Apr 2026, 18:15
