Cards like Grave Robbers, Nameless Race, and Eternal Flame just aren't
Thus the official Magic rules dont recognize watermarks, and timing restrictions cut out improvisational looseness from the gameplay
A fun little easter egg is that a reversed version of the mistake is given a shout-out in Time Spiral's Viscid Lemures, which shows what a 'lemure' is supposed to look like
One thing I do want to call out is that out of the sets we had this year, we did have one set only that added cards to Pauper via downshifts and that was Innistrad Remastered at the beginning of the year
While the 9 mana cost is more than a little expensive even for such an albeit fairly powerful creature, the secondary ability certainly helps push it over the edge into having excellent value
This rule is a major shift from what players are encouraged to do in the mainline video games