It's June 1st, and our fifth day counting down towards the release of the Final Fantasy Magic: The Gathering set
I just think you have a lot of slots in the sideboard that accomplish the same basic thing and you might be able to get away with condensing it a bit more to give more versatility for broader answers like psuedo-board wipes, silver-bullets, etc
While a little confusing on paper, this boils down to allowing the repeated use of exhaust abilities, turning them from a once-per-game affair into a once-per-turn situation, allowing for many of the more powerful abilities using this keyword to be activated again and again
Since it costs six mana to play, you can drop Yoshi on turn 1, and start swinging with the Commander damage amplified by legendary cards as well as removal and ETB triggers to keep up
Overall, if you want to a deck with sticking power and the ability to go wide, I think this will be for you