Marik Ishtar, the leader of the Rare Hunters, was able to acquire "The Winged Dragon of Ra" and "Slifer the Sky Dragon" using the power of the Millennium Rod, but Ishizu was able to protect "Obelisk the Tormentor" from him
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Anytime he attacks, you get to exile a card from a graveyard
Its not even on the Reserved List, so you could expect it to get a reprint just like other cards seen in Portal Three Kingdoms
So if you cast Galvanic Blast with three artifacts but one is removed while its on the stack, Blast resolves, see that you control less than three artifacts, and only deals two damage
The card looks amazing, too, justifying its price in more ways than one.