8 cards where the card types include “planeswalker” and the color identity is GW

Ajani, Mentor of Heroes (Journey into Nyx #145)
Ajani, Sleeper Agent (Dominaria United #192)
Ajani, the Greathearted (War of the Spark #184)
Ajani Unyielding (New Capenna Commander #324)
Ajani, Valiant Protector (Aether Revolt #185)
Calix, Destiny's Hand (Commander Masters #918)
Huatli, Radiant Champion (Rivals of Ixalan #159)
Huatli, the Sun's Heart (War of the Spark #230)

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