Timestream Navigator [Rivals of Ixalan Prerelease Promos] Island Swamp you may search your library

you may search your library for a Forest card

Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn

Set: Khans of Tarkir Prerelease Promos Type: Enchantment Rarity: Rare Cost: {U}{R}{W} Whenever you cast a noncreature spell

What doesn't grow

Timestream Navigator [Rivals of Ixalan Prerelease Promos] Island Swamp you may search your librarySet: Rivals of Ixalan Prerelease Promos Type: Creature Human Pirate Wizard Rarity: Mythic Cost: {1}{U} Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) {2}{U}{U}, {T}, Put Timestream Navigator on the bottom of its owner's library: Take an extra turn after this one. Activate only if you have the city's blessing.