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In Act Six ofDiablo 4, one of the biggest enemies you’ll face in Hell is the winged demon Ninsa. This fight is tough, but a good learning opportunity for future fights in the game, and can help whittle down what you need to improve with your build.
To fight Ninsa, you have to be in the Act Six story mission named “In Desolation’s Wake”. Like other bosses in the game, there are specific segments and problems players need to overcome to weaken the major foe.

How To Defeat Ninsa In Diablo 4
Making it into Hell, Lilith is sending everything she can to you to slow you down, most notably, some of her strongest demons. Ninsa is one of them, and a good way to check if you’re ready to fight Lilith in the future.
Stage One
The first part of the Ninsa fight that can be a bit tough isthe barrier she creates. If you’ve traveled the lands, this barrier can be broken down similar to how you would some random event missions. The key is todefeat specific enemies around herthat she draws energy from,marked by red lines.
Focus on defeating these Soul Burnersandavoid both Ninsa and other enemiesshe summons, as doing sowill lead to the barrier droppingand an opening for you to attack Ninsa herself.

Thiswhole fight works for all classes, as most story mission fights are balanced in that way.Getting rid of the Soul Burners and other demonsNinsa spawns can be a pain, butwide area spells and abilitiescan make that a breeze.
As taught in previous fights,movement is keyto boss fights, and Ninsa is no different. Throughout the fight, one of their major attacks is tolaunch fire from the sky down at you, which will bemarked ahead of time on the ground. verify tomove out of it in timeto avoid taking unnecessary damage.
Stage Two
WhenNinsa goes down to around 75 percentof her health, shewill leave and summon other enemiesfor you to fight instead. Chasing her down at theSearing Expansewill continue the fight, with her attacks remaining the same from the previous one.
The biggest difference in this second stage is that you will havesome familiar Horadric allies assist youin the projectiles that Ninsa summons,giving you a shieldto hide in if needed. Aside from that,use whatever you have at your disposalto whittle down the health bar and defeat Ninsa.
Rewards
When defeated, Ninsa will offerone to three items of randomized rarityfrom the boss loot poolalongside some gold, but there are still many future foes to defeat, andNinsa teaches some crucial lessons in boss battlesthat will apply to future fights.