However, this feels quite basic, and while no pre-con is going to be massively overpowered out of the box without a few upgrades, it just feels like this deck needs something more to aid its versatility
Going from the above suggestion of picking 9 cards, the mana costs of those cards should look something like 1,1,1,2,2,2,3,3,4
But even then, the cards are categorized as restricted, meaning that only one copy of each can be played in a given deck
Illustrated by Michal Ivan Standard Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
While Kaya is cool, and has cool art, she isnt by definition a card choice that satisfies quadrant theory (and I have a classic article about that and Cursed Mirror here, if you want to get on the same page)
Id say a little high on costs for activation, but synergizes well with the commander if you have food tokens lying around