Thunderblight Ganon

Windblight Ganon also refered as the Scourge of Divine Beast Vah Naboris is a Boss fought in Breath of the Wild. It is one of the four phantoms created by Calamity Ganon to take control of the Divine Beasts. It is fought either atop the Divine Beast Vah Naboris or in the center of Hyrule Castle if it is not already defeated. Once the four Divine Beasts are freed, the Monk Maz Koshia recreate the fight in Link's mind as part of the Final Trial. The original Thunderblight Ganon is responsible for the demise of Urbosa 100 years before the events of Breath of the Wild.

Battle
The main problem with Thunderblight Ganon is that it deals high electricity damage. Link must use food, elixirs or wear the Rubber Set with high-level electricity resistance to prevent taking too much damage during the fight. Thunderblight Ganon has three phases. In the first phase, Link can simply block its oncoming attacks with his shield and then retaliate. Once its health is halfway down, it will start to levitate out of reach and drop metal pillars all over the room before striking them with electricity. Link must use Magnesis to grab one of the pillars and shock Thunderblight Ganon with its own electricity to inflict a good amount of damage to it. For the third and final phase, Thunderblight Ganon will behave as it did in the first phase but it will attack much more aggressively than before and can now charge them with electricity. Once defeated, Link will be rewarded with a Heart Container.

Hyrule Compendium Entry
"This phantom of Ganon attacked the Divine Beast Vah Naboris and was responsible for the demise of the Champion Urbosa. It specializes in quick, lightning-based attacks."