mtg monument cards Riverchurn White creature spells you cast cost 1 less to cast Oketra's Monument | Amonkhet |

When Castle of Aaargh has no ice counters on it, sacrifice it

They are more flexible than Treasure Cruise, are awesome in Simic Ramp with Cultivate stuff from Green or Izzet Spellslinger with Treasure makers for things like Guttersnipe or Dimir with Coffers and Urborg or with mono-Blue Nykthos, Shrine to Nyx

Im personally hoping to rip open two or three of these at Sealed events, as theyre basically one of the best mana rocks in Kerith, the Returned King EDH

only when you look away do they show their actual forms, which is delivered with their ability to cease to be a creature

Imagine this is Commander

Butcher Ghoul Demonlord of Ashmouth Endling Evernight Shade Geralf's Messenger Hancock, Ghoulish Mayor Haunted One Mikaeus, the Unhallowed Sightless Ghoul Treacherous Pit-Dweller Undying Beast Undying Evil Vengeful Vampire Yahenni, Undying Partisan