This is Grell's most dangerous experiment yet, so he's relying on the wisdom of the ancient Byzantine engineers.
And its art. Little overpowered, though. Especially at uncommon, although I don't know how much you think about that kind of thing.-Nameless One (Who generally makes all his cards common or rare.)
It is indeed powerful, but it's also slow and quite mana-intensive. I believe it would need testing.
Empty your mind.