| Rarity: | R |
| #: | 4 |
| Creature Type or Sub Type: | Instant |
| Rules Text Contains: | 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. |
| Set: | Secret Lair Showdown |
| Number: | 4 |
