Aragorn, King Of Gondor Aragorn, King of Gondor is the only Aragorn-themed creature card from the Tales of Middle-earth pre-constructed Commander decks and the only one without green mana
Also, from a flavor point of view, mythic spells should be a huge ritual, not something someone just does at the their whim
The equipment sub-theme it enables can benefit your other knights by giving them gear to overpower your opponents, while always keeping the option open to go full Voltron once your commander hits the field
Well, one could argue that Arena mitigates a bannings damage
Mana dorks with mana value 1 were deemed too powerful for Standard for quite some time, though Foundations printed Llanowar Elves as a semi-permanent fixture of the format
Your opponents countermagic will also be completely dead if you manage to stick it, which is a nice bonus