Whether or not this was a mistake in clearly explaining which definition of remora was intended is somewhat apocryphal, but its clear that in the years since, Wizards has leaned into the double meaning with subsequent reprints
Lets compare to other trading cards
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From a small sample, Lightning and Psychic Energy appeared the most often (in Gym Heroes it was Lightning Energy, Gym Challenge I did not look at)
Volo, Street Urchin of placing Mind Over Matter Like a lot of endlessly tunable decks, the simultaneous broadness and specificity of this list asking only for some of the best creatures in Red & Blue, but also within the constraints surrounding enchantments, and otherwise limited space just keeps me coming back for more, and I would wager quite a lot of Polymorph/Scramble lists are similar