The only [Oberon] build you're going to need for most of the endgame if you main [Oberon].

UPDATE Whispers

This can solo netracells that's probably what you're after in this update.

Only thing we updated is that we've changed the build and removed Hunter Adrenaline and replaced it with Adaptation for additional Tankyness.

Subsume
Elemental Ward Cold Edition/Infested Mobility A/B

Performance

• Hit's the power strength softcap of 200% allowing full armor strip with 1xhallowed ground and 1xreckoning. YES
• Awesome in Arbitrations. YES!
• Steel Path Viable. YES!
• Insanely Tanky? SURE IS!
• Netracells. Solo
• Damage Reduction of 89% through armor only. Around about 2.5k on paper armor!
• Automatic Resurrection with Phoenix Renewal.

You'll need another Oberon loadout for the following though.

• Eidolons
• Level Cap 9999 E-peen Runs
• Meme Range Builds That Blind Everyone
• Mecha Overdrive ....
• That one smite synergy that one shots

Feel free to drop me a question.

You're Welcome!

Reference

Mandatory School
Unairu for +200 warframe armor after mods and abilities.

Archon Shard Configuration1
Amber Archon Shard +Casting Speed
Amber Archon Shard +Casting Speed
Crimson Archon Shard +Ability Strength
Crimson Archon Shard +Ability Strength
Crimson Archon Shard +Ability Strength

Archon Shard Configuration2
Tau Forged Amber Shard +Casting Speed
Tau Forged Crimson Shard +Power Strength
Tau Forged Crimson Shard +Power Strength
Tau Forged Crimson Shard +Duration
Tau Forged Crimson Shard +Duration