WUR runs a heavily nonbasic manabase (including Spirebluff Canal, Steam Vents, Riverpyre Verge, Hallowed Fountain, and Demolition Field), so Sunspine Lynx punishes them heavily on entry and denies any life gain from Jeskai Revelation. Zhao, the Moon Slayer compounds this by making any new nonbasic lands they play enter tapped, slowing down their mana development. Hired Claw is weak since its 1/2 body doesn't pressure them quickly enough through their removal, so it comes out. Kellan is cut as a slow value engine against a deck full of sweeper-adjacent removal like Combustion Technique and Avengers Disassembled.