Your search for "fervent mastery 311" revealed the following:
Fervent Mastery - Extended Art (Foil) (STX) from Strixhaven: School of Mages, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Sean Sevestre Card Text:You may pay 2RR rather than pay this spell's mana cost.If the 2RR cost was...
Fervent Mastery - Extended Art (STX) from Strixhaven: School of Mages, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Sean Sevestre Card Text:You may pay 2RR rather than pay this spell's mana cost.If the 2RR cost was paid,...