Jeskai Artifacts is entirely built around Urza's Saga, Mox Opal, Emry, and other artifacts, making Ingot Chewer's ETB destroy-target-artifact mode premium removal for their Saga tokens or Agatha's Soul Cauldron, with the evoke mode available when we need to be mana efficient. We cut two Trumpeting Carnosaur since their double-red cost competes with our cascade spells' mana needs and the deck can out-value us on raw card advantage if we get bogged down. Prioritize using Boseiju, Who Endures' channel ability to blow up their Urza's Saga before it ticks to chapter III. Keep the rest of the cascade shell intact since our proactive gameplan out-races their slower artifact assembly if we apply pressure early.