Fireblight Ganon is a fiery boss that uses a large sword and fire-based attacks. Phase 1: It will swing its sword and unleash fireballs. Dodge its attacks and counter. When it charges up a large fire attack, use Cryonis (L + X) to create an ice pillar between you and it, which will often stun it and expose its weak-point gauge. Phase 2: It will absorb fire from the environment, becoming more powerful.
Mipha is highly effective against Fireblight Ganon due to her water attacks. Link with a two-handed weapon can also deal significant damage. Use Stasis to interrupt its charging attacks. Focus on depleting its weak-point gauge whenever it appears. Be wary of its explosive attacks, which can cover a wide area. Rewards include Blight Ganon parts and powerful weapons.