Crystal Spray (50) [Invasion] Expedition you may search your library

you may search your library for a colorless creature card with mana value 7 or greater

then discard four cards

{T}: Choose a color

000 Commander Type: Legendary Creature — Human Soldier Rarity: rare Cost: {1}{W}{B} Leading from the Front — Whenever Commissar Severina Raine attacks

Set: Secret Lair Drop Type: Land — Swamp Mountain Rarity: rare ({T}: Add {B} or {R}

Crystal Spray (50) [Invasion] Expedition you may search your librarySet: Invasion Type: Instant Rarity: rare Cost: {2}{U} Change the text of target spell or permanent by replacing all instances of one color word with another or one basic land type with another until end of turn. Draw a card.