The plan is to swarm the board with low-cost Characters and start Questing for the win

Angelic Cub Arenson's Aura Armored Armadillo Bronze Guardian Chains of Custody Chapel Shieldgeist Chaplain of Alms Codespell Cleric Coppercoat Vanguard Daring Archaeologist Dawn Charm Dragon's Disciple Elena, Turk Recruit Equinox Faithful Squire Faithful Squire Flavor Judge Frontline Medic Graduation Day Grind // Dust Illumination Illuminator Virtuoso Inkshape Demonstrator Jabari's Influence Juniper Order Rootweaver Lapse of Certainty Leader's Talent Leonin Lightbringer Lionheart Glimmer Mage's Attendant Mana Tithe Matt Murdock, Justice Seeker Meadowboon Mila, Crafty Companion Moment of Glory Muraganda Eldrazi (playtest) Nyxborn Unicorn Order of the Sacred Torch Parting Gust Plate Armor Rebuff the Wicked Seal from Existence Show of Confidence Soulsworn Jury Stall for Time Swallow Whole Teferi's Care Trapped in the Screen Unyaro Griffin Valkmira, Protector's Shield Vigilant Martyr Vulpikeet Waxmane Baku

The ultimate is kind of an afterthought here, mostly because you will want to get real cards with the +1, so the mana value of the cards you exile wont be that high, but there will be situations where you look at the board and just using Ashioks +1 twice to exile two expensive things, and then fire off the -7 will make sense
I did a little research into the process beforehand but was greeted with conflicting information and 30min long Youtube videos so I figured Id summarize my experience, give some tips and relay some information I was told from the associate (Which may or may not be true)
What are probably the best cards from the set