While past products like Archenemy: Nicol Bolas may have been designed to emulate a specific storyline scenario, the cool part of Archenemy is that any deck and now any Commander deck can play the role of hero or villain
It may not be the sexy card, but it's the best one, I'm confident
I know for myself, I've started designating decks as "good enough", and am no longer updating them as new and better options become available
I loved the visual effects and it's easy to navigate
Consistent card draw helps this rank highly, as even one or two end step triggers is great from a 3-drop that can also be a 1-drop with warp
In general, the larger the effect, the higher the rarity of the card