Most imprint cards are artifacts or interact with artifacts, so there's room for those in an artifact-matters Commander deck
To comprehend the full answer requires years of temporal study
Our grading scale 10 Perfect Perfect centering (50%-50%) front and back A card that has never been played or moved, no marks on the front or back, no factory defects (white point, print line, etc.)
Clearly he's great at it, leading over 5,000 Merfolk decks, but my scoring is gonna pretty heavily affected by the second most played Merfolk commander, Kumena, Tyrant of OrazcaKumena, Tyrant of Orazca
Where it really shines is the closing power it provides when we pay our own 50 life