21 cards where the card types include “planeswalker” and the rarity is equal to uncommon

Angrath, Captain of Chaos (War of the Spark #227)
Arlinn, Voice of the Pack (War of the Spark #150)
Ashiok, Dream Render (War of the Spark #228)
Chandra, Novice Pyromancer (Core Set 2020 #128)
Davriel, Rogue Shadowmage (War of the Spark #83)
Dovin, Hand of Control (War of the Spark #229)
Huatli, the Sun's Heart (War of the Spark #230)
Jaya, Venerated Firemage (War of the Spark #135)
Jiang Yanggu, Wildcrafter (War of the Spark #164)
Kasmina, Enigmatic Mentor (War of the Spark #56)
Kaya, Bane of the Dead (War of the Spark #231)
Kiora, Behemoth Beckoner (War of the Spark #232)
Nahiri, Storm of Stone (War of the Spark #233)
Narset, Parter of Veils (Commander Masters #853)
Ob Nixilis, the Hate-Twisted (War of the Spark #100)
Saheeli, Sublime Artificer (Commander Masters #935)
Samut, Tyrant Smasher (War of the Spark #235)
Teyo, the Shieldmage (War of the Spark #32)
The Wanderer (Commander Masters #843)
Tibalt, Rakish Instigator (War of the Spark #146)
Vraska, Swarm's Eminence (War of the Spark #236)

The message was clear to Sorin—time to search for something else.