Put that card into your hand and put all other cards revealed this way on the bottom of your library in any order
But if we're looking at great artifacts that draw cards, Sword of Fire and Ice is amazing in its Jack-of-all-trades-ness: Even expendable fodder turns into a must-kill threat when wielding this fiery blade
By discarding one card, it will search out your deck for an Ancient Gear Golem or any Spell or Trap card that lists it in its text
The important thing here is not which grade is the correct one, but what you prioritize
They will very likely be able to make some tests and verify a card for you
In retrospect, the 'Through the Omenpaths' name was an obvious hint at this, but either way I love that we're getting new cards set on Bloomburrow, Duskmourn, New Capenna, and loads of other worlds I'm not expecting to see featured in a main set for years to come