Cloudstone Curio [Ravnica: City of Guilds]

Cloudstone Curio [Ravnica: City of Guilds]Set: 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.

If that land was nonbasic

The first player may search their library for a basic land card

you may sacrifice a Swamp

Sacrifice Living Armor: Put X +0/+1 counters on target creature

Set: Weatherlight Type: Instant Rarity: Rare Cost: {1}{W} Until end of turn

"Even the threat of power has power

Set: Avacyn Restored Type: Creature — Elemental Rarity: Rare Cost: {4}{G}{G} Trample

Players can't cast spells from graveyards or libraries

Set: Shadowmoor Type: Creature — Elemental Knight Rarity: Uncommon Cost: {3}{B/R}{B/R} Flying

where X is the discarded card's mana value

Set: Kaladesh Type: Enchantment Rarity: Rare Cost: {W} Creatures your opponents control enter the battlefield tapped

Set: Torment Type: Creature — Frog Beast Rarity: Uncommon Cost: {2}{G} Protection from black