mtg arcades wall deck commander Arcades, the Strategist WALLS TOUGHNESS Matters Magic Custom Arcades, the Strategist Wall Tribal/toughness

All that being said, Gideon Blackblade doesnt really fit in competitively

Burgeoning Burgeoning is a great early game play

As for the best of the new creatures, O'aka, Traveling Merchant turns your excess counters into carddraw, and Maester Seymour grows creatures of your choice as you grow him

Once Acererak is on the battlefield and battling, your opponents will have the difficult choice of sacrificing creatures if they dont want you to have Zombies

Vivi can only be used be turn and only your turn , so you won't be able to have excess mana to work with on your opponents' turns

In another world, Arthur is number one on this list for being a core piece of that deck - but he just doesn't cut it