Yeah Starfield is meant to played in two situations, you have enough enchanments in play to kill everyone in one attack or after someone destroyed all your enchanments to start recurring them.
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I originally had it in the deck, but more often than not, it was just a dead card. If it hit the battlefield players would instantly get rid of it or whoever was equipped with it. Tatsumasa ended being more useful, but Haunting Plate Mail has by far been the better of the lot.