Dragons of Tarkir gave us five newcomers (Dragonlord Silumgar, Dragonlord Atarka, etc.), Core Set 2019 gave us retrains of the originals (Arcades, the Strategist, Nicol Bolas, the Ravager), Strixhaven added five more as the namesakes of the different schools (Tanazir Quandrix, Beledros Witherbloom, etc.), and the five metal dragons from Baldur's Gate were also given the double creature type (Ancient Bronze Dragon, Ancient Copper Dragon, etc.)
Despite his earlier criticism, Remoiville praised Exdeath's role as "nature taking a monstrous form to attack humanity" for its overreliance on its resources and machines, a "form of irony" he felt series creator Hironobu Sakaguchi "mastered wonderfully"
Kenrith, the Returned King Kenrith, the Returned King is a nice mana sink that serves as a jack-of-all-trades for 5-color combo purposes
That said, the best clue commanders have some sort of payoff for creating or sacrificing Clues beyond just letting you draw extra cards, whereas legends that just make Clues for the sake of card advantage will rank a little bit lower
I plugged in a couple search queries: "delve," "convoke," "cost less to cast," "rather than pay this spell's mana cost," things like that to see what I could find