If your friend told you they were building a sphinx/wizard/zombie tribal EDH deck, it would probably look something like this
Even in Legacy, you can pitch the Dragon to Force of Will which is desirable in the format
9 Ludevic's Abomination Ludevic's Abomination is a card with a cool design, as it gradually emerges from an egg once you pour enough mana into it
Rendmaw, Creaking Nest I really like Rendmaw, Creaking Nest because it gives the game momentum
With Hakuoh eliminated, he ends up dueling Shobu again and loses
It seems that, rather than picking just one version, WoTC decided to capture Cid's meta-role across the entire franchise through its unique fifteen-variant artworks (representing the Cid of each main number FF game), plus the "any number of cards named Cid" clause - the first time these two design elements have been combined in MTG