Can magical-only mods occur on Crafted Items?
Not any more. Crafted Items are treated as Rares by the game, in terms of modifiers possible on them, so you can’t get Cruel or Grandmaster’s or Weird or Godly or Chromatic or any of the other mods that you can’t get on Rares. In the beta, magical-only mods could occur, and players got some Crafted items with unbelievable stats, but this has been fixed in the final game.