Any commanders looking to insert themselves into established archetypes, like typal decks or +1/+1 counters, will get judged against their peers to see if they add any novelty or power to the archetype
Try to pack some tools in your colors that will extend the game or dig you deeper into your deck, like cheap removal spells, counterspells, card drawing, and board sweepers like Wrath of God and Damnation
Arthur as king makes his debut in Lorcana as one of Steel's Legendaries this set
Whats more, many elves can serve as sources of ramp, allowing you to build up a towering stock of mana incredibly quickly
Theres also one Traditional Foil card in every pack, with a Traditional Foil Land showing up in 20% of boosters
All that being said, it's got a high ceiling and a low floor, and is probably over costed