Part of a full load out for a levelcap challenge

Archon shards - +450 energy, +5 hp/s, +25% casting speed, +15% parkour velocity

Garuda - Cast terrify, swap weapons, then throw the nuke without charging to instantly kill everything. When fighting eximi, spam shield gating until you trigger arcane aegis. Since CC doesn't work on them, getting that invulnerability is crucial

Primary - Felarx (Eximus/Demolyst deleter) https://overframe.gg/build/382467/
Corrosive, just built for as much raw burst DPS as possible. Kill trash mobs, prime eximi/demolysts, delete. At lvl 1000+, use your 4 to bypass armour.

Secondary - Epitaph (Primer + stat stick)
https://overframe.gg/build/359217/
2 augur mods, Amalgam Barrel Diffusion, then Viral + Heat.

Melee - Praedos (Stat Stick + Acolyte Deleter)
https://overframe.gg/build/384910/
+30 parkour velocity, +20% sprint/slide, 3x combo, +160% heavy windup speed, and forced slash procs all make it a great utility melee that also ensures an easy backup Acolyte one shot, if garuda's nuke doesn't delete it passively.

Companion - Sly Vulpaphyla (Survivability)
https://overframe.gg/build/382417/sly-vulpaphyla/objective-survive/
Panzer is actually redundant and disadvantageous. Nuke kills without viral, Primer has viral, and viral quills can override slash procs from Garuda's nuke/melee on acolytes. On the other hand, using a sly vulpaphyla's evasion with no offensive mods maximises Martyr Symbiosis uptime.

Amp - 133, Eternal Onslaught
Use alt fire against eximi to fast proc void and prevent them from harming your frame. Upon bleedout, voidstrike/cont wave your way through an eximus with primary fire. (Deal 45mil damage in 8s)

Madurai(if last gasp is unbound) - +50% casting speed, +40% str, can't go wrong with that. Void strike is also useful for demolysts, though useless/overkill on Acolytes since DPS on them caps at 14.6k (excluding crits). If Last Gasp is unbound, Void strike can easily allow you to take out trash mobs, which should still be under the armour strip/cc effects of Terrify.

Other misc gear - Madurai, Decaying + Bleeding Dragon Key, Magus Elevate, Magus Lockdown

Bleeding dragon key + 7.5hp/s [Regen] means energy can never run out, without any effort. Magus Elevate is just insurance, it could be swapped out for anything really.

Notes on Flex Slots - [Rolling Guard], [Umbral Intensify], and Molt Augmented can be replaced with anything from [Natural Talent] to [Primed Flow], they aren't essential to the build.