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Unfortunately, the archetype suffers from the very thing that makes it unique

Unlike many other Wizard cards, magecraft allows players to benefit from not only casting spells, but also from copying them

Turning a 5/5 into a 2/2 for just two mana - while providing a bonus to your own strategy - definitely makes for an interesting card

Putting a permanent card onto the battlefield from a graveyard is an impossible action while Soulless Jailer is on the battlefield

While many commonly played artifacts are powerhouses - such as Mind's Eye or Oblivion Stone, and the card has power, it's not ubiquitously nasty like the Stronghold