WUR (Jeskai variant) plays similarly to Jeskai Control with Tablet of Discovery, Jeskai Revelation, and Great Hall of the Biblioplex as long-game engines, so Colorstorm Stallion provides a resilient, ward-protected clock that punishes them for tapping low on interaction. Disdainful Stroke answers Jeskai Revelation before it can bounce or deal damage to your threats. Get Out and Impractical Joke are cut since they have few early targets to interact with, favoring resilience and counterspell protection instead.