Cloudstone Curio [Ravnica: City of Guilds] Human Citizen Set: Legendary Collection Type: Colorless

Set: Legendary Collection Type: Colorless Rarity: Holo Rare Retreat cost: Colorless

If you control an Urza's Mine and an Urza's Tower

Set: Secret Lair Drop Series Type: Legendary Creature — Rat Ninja Rarity: Rare Cost: {4}{B}{B} Ninjutsu {3}{B}{B} ({3}{B}{B}

Set: Secret Lair Drop Series Type: Enchantment Rarity: Rare Cost: {1}{G} Whenever a black card is put into an opponent's graveyard from anywhere

Set: Seventh Edition Type: Instant Rarity: Rare Cost: {R}{R} Take an extra turn after this one

Cloudstone Curio [Ravnica: City of Guilds] Human Citizen Set: Legendary Collection Type: ColorlessSet: Ravnica: City of Guilds Type: Artifact Rarity: Rare Cost: {3} Whenever a nonartifact permanent enters the battlefield under your control, you may return another permanent you control that shares a permanent type with it to its owner's hand. It *wants* to remain a mystery, banishing the curious in favor of less inquisitive company.