Caltrops [Urza's Destiny] Guilds of Ravnica Set: Kaladesh Inventions Type: Artifact

Set: Kaladesh Inventions Type: Artifact Creature — Shapeshifter Rarity: Mythic Cost: {6} Imprint — When Duplicant enters the battlefield

Set: Alpha Edition Type: Enchantment — Aura Rarity: Uncommon Cost: {2}{U}{U} Enchant artifact

Set: Fate Reforged Promos Type: Instant Rarity: Rare Cost: {4}{U}{U} Return target creature to its owner's hand

Set: Alpha Edition Type: Creature — Human Druid Rarity: Rare Cost: {1}{G}{G} Whenever you cast an enchantment spell

Caltrops [Urza's Destiny] Guilds of Ravnica Set: Kaladesh Inventions Type: ArtifactSet: Urza's Destiny Type: Artifact Rarity: Uncommon Cost: {3} Whenever a creature attacks, Caltrops deals 1 damage to it. Toward the end, Gatha struggled to keep his experiments in and his patrons out.