Your search for "Fierce Guardianship 1823" revealed the following:
Fierce Guardianship (C20) from Commander 2020, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Randy Vargas Card Text:If you control a commander, you may cast this spell without paying its mana cost.Counter target noncreature spell.
Fierce Guardianship - Extra Life 2024: Pixel Perfect (Rainbow Foil) (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Foil Artist: Mike Burns Card Text: Pixel PerfectIf you control a commander, you may cast this spell...
Fierce Guardianship - Extra Life 2024: Pixel Perfect (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Mike Burns Card Text: Extra Life 2024: Pixel PerfectIf you control a commander, you may cast this...