2 cards where the name includes “pandemonium”

Pandemonium {3}{R}

Enchantment

Whenever a creature enters the battlefield, that creature’s controller may have it deal damage equal to its power to any target of their choice.

“If we cannot live proudly, we die so!” —Eladamri, Lord of Leaves

Illustrated by Pete Venters

Standard
Frontier
Modern
Pauper
Legacy
Penny
Vintage
1v1 Cmdr.
Commander
Brawl

Pyxis of Pandemonium {1}

Artifact

{T}: Each player exiles the top card of their library face down.

{7}, {T}, Sacrifice Pyxis of Pandemonium: Each player turns face up all cards they own exiled with Pyxis of Pandemonium, then puts all permanent cards among them onto the battlefield.

Illustrated by David Palumbo

Standard
Frontier
Modern
Pauper
Legacy
Penny
Vintage
1v1 Cmdr.
Commander
Brawl

Their mind whirled with grand plans, never thinking of what might happen if they got to the end of the list.