Boss fight against Abaya the Water Hag for the contract "Muire d'Yaeblan" in the Witcher 3 on PC on hard mode. I was able to do a one hit kill using a Northern Wind bomb which is apparently her weakness.
More Witcher 3 boss fights in 4K: https://youtu.be/uwgq5vtiixQ?list=PL7bwjwx5Wwdc-GyHj8wSdGdXOZ5l0SKQc
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