Your search for "Maelstrom Pulse 204" revealed the following:
Maelstrom Pulse (Foil) (UMA) from Ultimate Masters, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: John Avon Card Text:Destroy target nonland permanent and all other permanents with the same name as that permanent.
Maelstrom Pulse (UMA) from Ultimate Masters, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: John Avon Card Text:Destroy target nonland permanent and all other permanents with the same name as that permanent.
Maelstrom Pulse (Foil) (MP2) from Amonkhet Invocations, available at 401 Games Canada. Rarity: Mythic Rare Finish: Foil Artist: Igor Kieryluk Card Text:Destroy target nonland permanent and all other permanents with the same name as that permanent.