Howdy folks!

For me, the companion should provide [Enemy Radar] and collect the resources while providing utility during combat. Also it's important to be hard to kill so you won't lose your little helper during the mission.

Let's talk about the mods:

• Primed Animal Instinct + Vacuum -> Those 2 give your guy the ability to see the enemies on the map and grab the loot when in close proximity.

• Guardian + Medi-Ray -> I said about providing utility during combat, those 2 will heal your warframe in combat.

• Primed Regen -> In longer runs, your sentinel might die. Primed regen gives your companion 3 more lives.

• Repair Kit -> I know it's slow but it's the only way to heal the sentient.

• Enhanced Vitality + Metal Fiber -> Your guy needs some stats, it must be able to catch a few bullets without dying.

• Accelerated Deflection -> Since shield gating it's a thing, it's better to have a small shield which regenerates faster instead of a big slow one.

• Reawaken -> After his lives from [Primed Regen] get exhausted, your bud will die for real this time. This mod makes him unique, giving him the ability to revive itself after 90 seconds. (It's a long time but it's better than nothing, I guess.)

***A few words about Shield Gating

Shield Gating is an effect that occurs when shields are fully depleted, which prevents any excess damage leaking into the health pool. Warframes, Companions, and Necramechs gain 1.3 seconds of invulnerability upon hitting the shield gate, only resetting when shields are allowed to fully replenish. If the shield is still in the process of recharging after the gate has activated, the shield gate will only last for 0.33 seconds.

Other viable mods choices:

• Animal Instinct - It can replace Primed Animal Instinct if you don't have it.
• Regen - It can replace Primed Regen if you don't have it.
• Synth Fiber - Extra armor is nice.

*PROS and CONS*

• Sentinel weapon modsets bonuses
• Self-revive
• Looks dope (pics below)

• Squishy
• Reawaken's cooldown is too long (90s compared to Vulpaphyla's 30s)**

Conclusion

[Djinn] looks cool but it's squishy and the self revive ability is very slow. It's only good if you really want a robotic companion, otherwise a Vulpaphyla is way better.

Here is my [Djinn]. I tried to make it look like some infested flying creature.

Check out my other companion builds:

• Carrier - Your ammo buddy
• Panzer Vulpaphyla - The Immortal Fox
• Adarza Kavat - Critical Eidolon Hunter
• Smeeta Kavat - The most useful companion