mtg cavalry charge commander deck Upgrade - Improving the Precon with $100 open boosters from multiple formats Magic March of the Machine

This is because you can use it as reanimation to bring back a creature from your graveyard, and it gives it haste

If youre playing an Urza, Chief Artificer deck that primarily wins with a board of artifact creatures, Phyrexian Scriptures and Organic Extinction are great finishers because they leave your board mostly untouched while destroying everything else

It hits all the checkboxes for things I love about Commander

Nissa Vital Force specifically hurt Protector as she offers a recursion effect as well while being a much more reasonable return of power for the mana

More importantly, Cinderellas Singing Sword lets her target readied characters whenever a song is play, letting her attack characters that would usually be protected

It's at $29.50 market and not much lower elsewhere