The Wanderer prevents COMBAT damage
My opponent controlled the Wanderer and attacked with a 3/2 Makeshift Batallion which became a 4/3 after its trigger resolved. I blocked with a 3/2. but the Makeshift Battalion survived.
The picture shows the combat in my opponent's next turn. As you can see the additional information window clearly states "prevent damage to this" (The Wanderer).
This occured during a WAR Sealed.
Thank you for looking into this. I appreciate it