River Song's Diary (Extended Art) [WHO - 460] Land Rules Text Contains: Whenever another

Rules Text Contains: Whenever another creature you own enters the battlefield

Those creatures gain flying until your next turn

swarm piper

Flavor: "It's not a matter of what I know

River Song's Diary (Extended Art) [WHO - 460] Land Rules Text Contains: Whenever anotherRarity: R #: 460 Creature Type or Sub Type: Artifact Rules Text Contains: Imprint Whenever a player casts an instant or sorcery spell from their hand, exile it instead of putting it into a graveyard as it resolves. At the beginning of your upkeep, if there are four or more cards exiled with River Song's Diary, choose one of them at random. You may cast it without paying its mana cost.