Fierce Guardianship [Commander Masters] Zombie Elemental Defector Mite can't block

Defector Mite can't block

Set: 30th Anniversary Edition Type: Sorcery Rarity: Common Cost: {2}{R} Destroy target land

Set: Collectors' Edition Type: Enchantment Rarity: Rare Cost: {3}{R} Whenever a player taps a land for mana

At the Astrotorium

you may search your library for an Aura card with mana value less than or equal to that Aura and with a different name than each Aura you control

Fierce Guardianship [Commander Masters] Zombie Elemental Defector Mite can't blockSet: Commander Masters 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