It's a very Commander-esque ability in hindsight, but the design team didn't even think of a Commander format at the time, and they wanted people to build decks around it, so it was intentionally a non-legendary creature so they could take multiple copies out on the battlefield
Bulbapedia is usually pretty stubborn about only including official information, even to the detriment of their website, but perhaps this predates their rigidity
Qui il pesce protagonista assoluto: dai crudi di mare alle ostriche , fino alle proposte che esaltano la semplicit e la purezza della materia prima
you literally can't get a PSA-graded copy of this card that has a superior grade
Urza holds an important place in the story as a character, so we knew a planeswalker card of him had to be a big deal
Simba quests for one lore and comes equipped with the bodyguard ability which allows him to enter play exerted, and any opposing character looking to challenge your characters will have to go through him first