I expect Rukarumel, Biologist to be a popular typal commander in the same vein as Morophon, the Boundless
But older white cards such as Divine Intervention take this philosophy in weird directions
The exiled card will return to the battlefield at the beginning of the end step even if Phelia is no longer on the battlefield
A 4/4 flyer that makes all opponents discard is a good start for 4cmc, but that flip activation is awful: 7 mana, sorcery speed, and your opponents can respond with instant speed removal
Throwing the strongest possible characters on the field might win every once in a while, but a smart strategy is always the better option
Equipment decks make it easy to turn your commander into a creature with 21 power, allowing them to take someone out of the game with just one damage connection