Empty the Warrens

Mana cost: {3}{R}
Type: Sorcery
Set: Secrets of Strixhaven Mystical Archive #108 (rare)
Price: $1.39 USD

Create two 1/1 red Goblin creature tokens.
Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Empty the Warrens has 13 printings, first in Time Spiral (2006). EDHREC ranks it #2,539 among Commander cards. It appears most in Krenko, Mob Boss decks (14,413 on EDHREC). 1 public deck on TCG runs it. It has 4 official rulings.

Legality

commander: legal
legacy: legal
vintage: legal
pauper: banned
modern: legal
pioneer: not legal
standard: not legal
brawl: legal

Public decks that run Empty the Warrens

Goblin Storm Secret Lair Commander, led by Zada, Hedron Grinder

Commanders that run Empty the Warrens most

Deck counts from EDHREC.

Krenko, Mob Boss: 14,413 decks
Zada, Hedron Grinder: 11,603 decks
Magnus the Red: 3,725 decks
Wort, the Raidmother: 1,835 decks
General Kreat, the Boltbringer: 1,229 decks
Ovika, Enigma Goliath: 1,071 decks
Aziza, Mage Tower Captain: 1,038 decks
The Great Goblin: 875 decks

Often played with Empty the Warrens

Cards that show up in the same decks on EDHREC.

Rulings

2022-12-08: Spells cast from zones other than a player's hand and spells that were countered are counted by the storm ability.
2022-12-08: The copies are put directly onto the stack. They aren't cast and won't be counted by other spells with storm cast later in the turn.
2022-12-08: A copy of a spell can be countered like any other spell, but it must be countered individually. Countering a spell with storm won't affect the copies.
2022-12-08: The triggered ability that creates the copies can itself be countered by anything that can counter a triggered ability. If it is countered, no copies will be put onto the stack.