Unholy Heat
Instant (CMC 1)
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.
Decks with Unholy Heat
[H2R] Modern Horizons 2 Timeshifts #13 (C)
[OTC] Outlaws of Thunder Junction Commander #182 (C)
[SLP] Secret Lair Showdown #4 (R)
[MH2] Modern Horizons 2 #145 (C)
[J21] Jumpstart: Historic Horizons #529 (C)