One example is a version of Cinderella that is able to play song cards easier than other characters because of her singing ability
I particularly love Rattleclaw Mystic for its ability to unmorph and actually net us a mana, giving us one of each of our three colors, and then being able to tap for an additional mana
Cantrips like Opt and Consider are essential: they give me cheap card selection and the ability to dig for answers, and when paired with value engines like Talrand, Sky Summoner and Murmuring Mystic, they can add up to a massive board before long
Pick up the popular commander card, Lightning Greaves
Tezzeret, Cruel Captain The flexibility on Tezzeret, Cruel Captain isn't evident with the chair art, but any deck that plans to put out lots of small artifacts, use mana rocks, or myr has a great reason to run this Tezzeret
What started out as a Gishath deck, transitioned to Zacama, before ultimately ending up right back where I started