Timestream Navigator [Rivals of Ixalan Prerelease Promos] The Lost Caverns of Ixalan Genesis Engine can be your

Genesis Engine can be your commander

Other Vampires you control get +1/+1

"Test 37: Sentience module is still too strong

then lay silent

−3: Exile target nonland permanent

Timestream Navigator [Rivals of Ixalan Prerelease Promos] The Lost Caverns of Ixalan Genesis Engine can be yourSet: 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.