The best choice often lies in opposing commanders: Everybody wants to cast them frequently, so finding a common number does a lot
Best Lorcana steel cards Beast, Hardheaded Mickey Mouse, Musketeer Captain Hook, Forceful Duelist Maui, Demigod Simba, Rightful Heir Hans, Thirteenth in Line Tinker Bell, Giant Fairy Steel cards power means that they can typically cost more of your inkwell to get out, resulting in a slower route to victory than faster ink colours such as ruby
Queen Marchesa The Monarch is a highly useful status to have in MTG, activating a boatload of additional effects on cards that rely on this ability, as well as restocking your hand by gaining an additional draw at the beginning of the end step
You might also not want to pay four mana for your white planeswalker, and then Gideon of the Trials is looking a lot more appealing because of the discounted mana cost
Biomechan Engineer This 2/2 for two mana has a lot going on