The dual lands are a good portion of the decks budget too, so you can replace the shock lands with more inexpensive duals like Canopy Vista, Overflowing Basin, or scry lands
When dealing with a limited pool of powerful removal and disruption, the curve becomes the most important factor
Rhet-Tomb Mystic Rhet-Tomb Mystic is a small flier with a huge upside: It gives every creature card in your hand cycling
Roalesk, Apex Hybrid Roalesk, Apex Hybrid hit the scene in War of the Spark , and its death trigger makes it difficult to build around as a commander
Because each spell was its own "card" with its own cost, I gave each a name
So, I figured 12 of each permanent and then 12 interaction might make more sense, although obviously some things will have more than others