I made a budget deck of this commander using a Monarch/Goad theme. I came to a few realizations about Aragon. First my opponents always like trying to take the Monarch from me. It is card draw and to be expected. 2nd using Aragon is great especially when attacking and being the Monarch. Making your army completely unblockable is definitely a bonus. However keeping the Monarch while using Aragon's ability isn't always an easy task. Your deck looks like it needs more Monarch which there are 32 cards that are tied to being or getting you the Monarch.
https://scryfall.com/search?as=grid&order=name&q=oracle%3Amonarch+commander%3AWUR+%28game%3Apaper%29Then I am planning on switching into extra combat steps like
Combat Celebrant, Port Razor,
Aurelia, the Warleader,
Bloodthirster, and
Karlach, Fury of Avernus. Because while Aragon can give unblockable but he only does 4 commander damage with
lifelink. So extra combat steps helps increase the commander damage along with more life.