Your search for "Firestorm Prominence STON-EN026" revealed the following:
Firestorm Prominence - STON-EN026 - Common - Unlimited from Strike of Neos Unlimited, available at 401 Games Canada. Rarity: Common Card Text:When this card is destroyed by battle and sent to the Graveyard, destroy all face-down and non-FIRE monsters.
Firestorm Prominence - STON-EN026 - Common - 1st Edition from Strike of Neos 1st Edition, available at 401 Games Canada. Rarity: Common Card Text:When this card is destroyed by battle and sent to the Graveyard, destroy all face-down and non-FIRE...