Ever thought about switching to Atla Palani, Nest Tender for your commander? If mayael is your pet commander it’s prob not an option, but Atla would speed the deck up a lot. With some untappers and sac outlets you can produce and sacrifice easily like 2-8 eggs each turn or even going infinite and put all creatures from your library into game. You could still run mayael in the deck but would have to cut some creatures to make it more efficient and to make space for some cards that take Atla to the next level

Pikobyte, I want to hold onto Mayael as long as possible. Atla is certainly the step I gotta take as soon as I cant hang on any longer. Thanks for commenting!

So, the most efficient speed boost is the expensive rocks.

Mana Crypt, Chrome Mox, Mox Diamond, and Mana Vault

On the somewhat lower end

Fellwar Stone, Mind Stone, Talisman of Unity, Talisman of Impulse and Talisman of Conviction

Now with more mana you should add means of multiple taps Quirion Ranger, Scryb Ranger, and Thousand-Year Elixir are all fairly decent