Invasion of Gobakhan // Lightshield Array [March of the Machine Prerelease Promos]Set: March of the Machine Prerelease Promos Type: Battle Siege Rarity: Rare Cost: {1}{W} (As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.) When Invasion of Gobakhan enters the battlefield, look at target opponent's hand. You may exile a nonland card from it. For as long as that card remains exiled, its owner may play it. A spell cast this way costs {2} more to