Lurking Predators [Jumpstart] Aura Curse Set: The Brothers' War Type:

Set: The Brothers' War Type: Artifact Creature — Phyrexian Dragon Rarity: Rare Cost: {3} Double strike

Whenever Suspicious Stowaway deals combat damage to a player

Set: Mystery Booster Playtest Cards Type: Creature — Human Warlock Rarity: Rare Cost: {3}{B} When Celestine Cave Witch enters the battlefield

but I couldn't tell you who they were

It operates on necessity

Lurking Predators [Jumpstart] Aura Curse Set: The Brothers' War Type:Set: Jumpstart Type: Enchantment Rarity: Rare Cost: {4}{G}{G} Whenever an opponent casts a spell, reveal the top card of your library. If it's a creature card, put it onto the battlefield. Otherwise, you may put that card on the bottom of your library. All are prey to the eyes of the wild.