This is a meme build intended to create the most tanky (in a generic sense of eating every attack you can throw at him) frame ever.

Here are some calculations for EHP considering Desolate Hands and Null Star are enabled and restrain is depleted.

1147/(1 - 1411/(1411 +300)) + 520/0,75 Armor 82,5% + Shields 25%
7235

7235 * 100 / (100-90) Desolate Hands
72350

72350 * 100 / (100-90) Null Star
723500

723500 * 100 / (100-90) [Adaptation] (realistically though it can be lower than 90% as you only get resistance to highest damage type)
7235000

7235000 * 100 / (100 - 50) Baruuk Passive
14470000

14470000 * 100 / (100 - 40) Serene storm - this one is unreliable and unnecessary
24116666

14 millions EHP without Serene Storm results on average of 15 damage from level cap Heavy Gunner (considering they hit 190000 at level 9999) which makes it just a scratch not even worth mentioning.

This build shouldn't be fun as you are not playing [Baruuk] and instead are just an infinite bullet sponge with some [Kuva Zarr] or Bramma one shooting everything and your weapon is your frame.

You are still vulnerable to nulification or silence. This can be solved by calling railjack crew member whenever you see Malice appearing and in case it is on cooldown there is still shieldgating and Panzir Vulpafyla to save you from death and give you some time to restore abilities.

Using Madurai's 40% strength buff and parazon's mercy 50% can greatly increase number of daggers from desolated hands but you shouldn't waste them anyway as their range without Elude is just 2 meters. That is why I won't recommend enabling Serenity.