Its a very specific Izzet enchantment, rewarding you for playing lands and casting spells in non-traditional ways
Kess, Dissident Mage or other commanders which can flashback Approach are good because they let you focus entirely on getting copies to the graveyard, instead of having to hold a couple in hand
Most Commander decks can go over the top of everyone else, but they need a way to ensure they can enact their plans
What also makes Endurance good for me personally is its a Collected Company hit that feels good even when the ability isnt that relevent
Getting to immediately discard two and draw two gives you huge value, sculpting your hand, setting up delirium and the like
While I personally havent played the Fallout games and ergo have no emotional attachment to that universe, the idea of a white-red-green voltron commander that could recur Aura and Equipment cards from the graveyard sounded interesting