Fierce Guardianship [Commander 2020] Mystery Booster Playtest Cards you may cast this spell

you may cast this spell without paying its mana cost

Ferocious King

Set: Conspiracy Type: Instant Rarity: Rare Cost: {3}{U}{U} You may exile a blue card from your hand rather than pay this spell's mana cost

Spikodon (1)

Set: Exodus Type: Legendary Creature — Human Wizard Rarity: Rare Cost: {2}{U} {2}{U}{U}

Fierce Guardianship [Commander 2020] Mystery Booster Playtest Cards you may cast this spellSet: Commander 2020 Type: Instant Rarity: Rare Cost: {2}{U} If you control a commander, you may cast this spell without paying its mana cost. Counter target noncreature spell. "Hunt somewhere else. This is your only warning." Gavi, nest warden