As The Command Zone hosts explain in their preview livestream, the word change was required because, without that 'only', modal spells that hit your opponents, but also target things on your side of the battlefield could still be copied
The wacky combo with this deck is something that allows you to fight one of your own creatures, Broodhatch Nantuko (or Saber Ants), and Purphoros, God of the Forge (okay, there are lots of things that combo with Purphoros)
You activate this ability while X is on the battlefield under your control
Sounds good to me depending on how treasured the recovered artifact is
We're still in that phase with these where these go back to our very first brainstorms, Heggen tells me, saying they are still working through the top of the list of ideas they initially came up with years ago while continuing to add to that list too