Evolving galarian yamask

[TomatoCX]

I've been trying to evolve my galarian yamask in the desert by making him take 49 hp in one hit but its not working. I've done it multiple times, in a dessert temple, using a rare candy, and I just can't get it to work...Any suggestions>?

 

[ImmortalEagle42]

Heya Tomato! Sorry for the late response! The mon is a very stubborn one to evolve. If you relog and try again, it should work. If it doesn't, feel free to make a ticket