Harbinger of the Seas [Modern Horizons 3 Prerelease Promos] Mystery Booster 2 Playtest Cards Set: Commander Masters Type: Instant

Set: Commander Masters Type: Instant Rarity: Rare Cost: {3}{U}{U} Return all creatures to their owners' hands

Set: Commander Masters Type: Sorcery Rarity: Rare Cost: {2}{R}{R} Goad all creatures you don't control

Set: Phyrexia: All Will Be One Prerelease Promos Type: Legendary Creature — Phyrexian Vampire Rarity: Rare Cost: {1}{B} Whenever one or more other creatures you control die

ensuring that Upper City residents aren't bothered by the messier parts of nature

if Genesis Chamber is untapped

Harbinger of the Seas [Modern Horizons 3 Prerelease Promos] Mystery Booster 2 Playtest Cards Set: Commander Masters Type: InstantSet: Modern Horizons 3 Prerelease Promos Type: Creature Wizard Merfolk Rarity: Rare Cost: {1}{U}{U} Nonbasic lands are Islands. The rising moon calls mercilessly to the waves, commanding the sea to rise high enough to devour mountains.