2 cards where the name includes “meltdown”

Aether Meltdown (Kaladesh #36)

Aether Meltdown {1}{U}

Enchantment — Aura

Flash (You may cast this spell any time you could cast an instant.)

Enchant creature or Vehicle

When Aether Meltdown enters the battlefield, you get {E}{E} (two energy counters).

Enchanted creature gets -4/-0.

Illustrated by Jason Felix

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny
Meltdown (Modern Horizons 3 #282)

Meltdown {X}{R}

Sorcery

Destroy each artifact with mana value X or less.

Catastrophes happened so often at the mana rig that the viashino language had a special word to describe them.

Watermark: Set Symbol

Illustrated by Donato Giancola

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny

It is the moment of discovery, the triumph of the mind, and the end of these results.