This [Citrine] build holds up anywhere. Obviously, you can sub out many items, such as the arcanes, or literally anything else. This build is my goal for my end game Citrine. Below I talk about switching out mods/subsumes, because I currently do not have some of these mods. With that being said, with the switches discussed, Citrine is still an amazing support/dps frame for mid-level mastery ranks who have access to the Archon set mods they can adjust into end game.

Important to note: [Citrine]'s Prismatic Gem attacks enemies taking weapon damage. Because of this, I highly recommend spray weapons, like the [Ignis Wraith], which is what I personally run. Her Prismatic Gem definitely attacks multiple enemies at one time and also extends past her visual circular range for basically anything in line of sight (haven't tested exact range, but it is pretty insane).

In higher level missions,
Hit 3: Prismatic Gem buff gives massive 253 base % status chance buff to entire squad and applies heat, electricity, toxin and cold activating her archon mods, not to mention increased status duration.
Hit 2: 89% Damage Reduction base, but is basically 90%, immediately capping it out.
Hit 1: Replaced with Nourish because why not add some viral in there with everything else.
Hit 4: I usually don't even need the 4th to mow down enemies, but it is in nice on higher level missions if needed or when a lot of enemies come up. The more enemies, the more the crystals spread with her new augment mod spreading that 300% crit chance and immobilizing any enemies without overguard.

Auras/Arcanes. I played [Citrine] before the augment mod came out and honestly, I am super happy with the way it flowed so nicely into this build. Currently, I cannot run maxed arcanes (just haven't farmed them). I am running [Corrosive Projection] because I do not have [Growing Power], which drops the forma count to 5.

Switching out Nourish. This build has a lot of extra energy buffs between nourish, archon flow, and the duration buffs/times of the abilities. Energy should not be a problem once you get 3 proc'd. I would be interested to see feedback on someone running Roar/Xata's Whisper/other subsumes in place of nourish. Honestly, if you use this build, the Nourish is just extra. Her first also gives increased health and energy drops, so earlier game this build will still work with her Fractured Blast.

Link to a build I am playing with incorporating Trinity's Well of Life for status immunity: https://overframe.gg/build/647196/

Switching out [Natural Talent]. I currently run [Natural Talent], because her casting time can be on the longer end, which only matters with level 150+ enemies, in my experience.

Switching out [Preparation]. I currently run [Power Drift] for extra strength increase. I would want to eventually switch to Preparation, so I don't have to wait for 3 to proc for energy/drop energy pads in the beginning of every mission.