Dragon Tempest [Dragons of Tarkir Promos] Premodern Set: Collectors' Edition Type: Enchantment

Set: Collectors' Edition Type: Enchantment Rarity: Rare Cost: {1}{U} You may have Copy Artifact enter the battlefield as a copy of any artifact on the battlefield

Set: Morningtide Type: Enchantment Rarity: Rare Cost: {U}{U} As Declaration of Naught enters the battlefield

Set: Innistrad: Crimson Vow Prerelease Promos Type: Legendary Creature — Slug Horror Rarity: Mythic Cost: {5}{B}{B} At the beginning of each end step

Creatures you don't control get -1/-1 for each slime counter on them

Dragon Tempest [Dragons of Tarkir Promos] Premodern Set: Collectors' Edition Type: EnchantmentSet: Dragons of Tarkir Promos Type: Enchantment Rarity: Rare Cost: {1}{R} Whenever a creature with flying enters the battlefield under your control, it gains haste until end of turn. Whenever a Dragon enters the battlefield under your control, it deals X damage to any target, where X is the number of Dragons you control.