In full disclosure, the 2nd-place finisher of the Open, Ryan Mcdonaugh, also used an exert creatureGlorybringerbut I wouldn't stretch to call this deck anything close to exert-driven
Like most sets, its the cost and nature of the removal suite which influences the speed of play
Lands (25) Spells (35) 3 Counterspell 1 Wrath of God 4 Replenish 1 Mystical Tutor 3 Enlightened Tutor 3 Parallax Tide 1 Seal of Cleansing 4 Frantic Search 4 Opalescence 1 Energy Field 1 Sky Diamond 4 Attunement 1 Seal of Removal 4 Parallax Wave Sideboard Similar to Attunement, Frantic Search let Tom dig through his deck while stocking the graveyard, and both Parallax Tide and Parallax Wave could have a powerful impact on the table early before eventually contributing to a Replenish being extremely disruptive
This weapon comes to control at a good time, as the archetype feels stronger than its been in ages, especially under the open decklist policies of the Mythic Championship
Expedition Map At one point, I looked at my Azorius Signet and wondered why that was in my deck instead of Expedition Map
Brazen Cannonade Slamming creatures into combat for value now has even more upside, as if any of them dies, we deal two damage to each opponent with Brazen Cannonade