Best Builds

Shared Build Philosophy

Sirius and Orion share one mod configuration, so every slot must serve both brothers and the constellation loop. The best builds prioritize ability duration and range for star generation uptime, ability strength for clash damage and status potency, and moderate efficiency augmented by Dual Swap forty-five percent discount windows rather than maxing efficiency at the expense of strength or duration.

Health and shields balance depends on playstyle. Steel Path players often run Umbral Intensity and Vitality with Adaptation or similar damage reduction because clash placement requires standing near combat. Support-leaning starchart builds can afford narrower survival margins if squadmates cover defense auras.

Do not build purely for Wingman weapon damage unless testing meme setups. Wingman contributes passively; constellation clash remains the primary burst vector. Primary and secondary weapon choices complement heat and slash identities—heat weapons for armor-sensitive targets, slash weapons for grouped finisher setups—but ability mods carry the frame.

Sirius Support and Heat Builds

Sirius support and heat builds emphasize ability strength for heat proc density, duration for lingering buff or strip analog effects depending on ability kit, and range for squad-wide coverage in public missions. Recommended core mods include Intensify or Umbral Intensify, Stretch or Umbral Stretch, Continuity or Primed Continuity, and Streamline or Umbral Streamline at moderate ranks before relying on swap efficiency.

Support players subsume on primary brother—often Roar, Shields, or Energized Dash equivalents depending on account progress—choose Helminth that amplifies team damage or personal survival without breaking star rotations. Roar multiplies clash detonation when subsume applies to setup abilities correctly; verify interaction with current patch tooltips.

Heat-focused modding pairs with weapons that add base heat for armor-corrupted enemies in Grineer and Infested content. Sirius heat identity stacks with weapon procs to accelerate kills between clash windows. Avoid over-investing in range at the cost of duration if your star generation depends on ticking abilities—ticks need time on target more than oversized radius in small tiles.

Aura mods: Energy Siphon or Pauper in energy-starved squads; Corrosive Projection or Shield of Shadows equivalents when squad composition lacks armor strip or shield gate tools. Growing Power or Power Donation if organized static supports buff stacking—optional in public matchmaking.

Exilus slot: Power Drift, Cunning Drift, or speed-altering drifts based on preference; none define tier placement. Arcane Guardian or Grace for survival on support builds that stand near allies during clash placement.

Orion Crowd Control and Slash Builds

Orion crowd control and slash builds push range and duration harder than pure Sirius setups because slash spread and lockdown effects scale with area and time on field. Primed Continuity, Augur Reach or Stretch, and Constellation-friendly duration mods keep control fields active through brother swaps.

Strength remains important for slash proc damage and ability base damage even on CC builds. Target roughly 130–180 percent ability strength before clash investment depending on content. Over-strength without duration yields brief CC that fails to cover full star setup rotations.

Crowd control mod synergies include mods that increase knockdown or lift duration where abilities support it. Avoid mods that conflict with slash finisher setups if your squad relies on ground finishers—check ability behavior before equipping contradictory augments if augments exist for specific Orion abilities in your patch version.

Orion CC builds shine in Steel Path survival where enemy density is high and star generation ticks benefit from grouped targets. Pair with primary weapons that carry high status chance for slash or viral support if ability slash does not cover all elements your mission requires.

Primary brother Helminth on CC-focused accounts sometimes subsume Lateral or Gloom-style utilities for personal safety while standing in controlled fields. Secondary Sirius still generates green stars during hold-swaps—CC builds must not forget color sequencing while camping Orion abilities.

Modding for Constellation Throughput

Constellation throughput mods are duration and efficiency first, strength second for star tick abilities, range third for grouping-dependent setups. Track average time to seven stars in Simulacrum when testing configurations; best builds reach cap in under thirty seconds on moderate enemy levels without wasting generation at consecutive color locks.

Swap efficiency weaving reduces need for max Streamline. Many endgame builds run Umbral Streamline rank eight to twelve plus Natural Talent or speed casting where available, then rely on swap discount for expensive casts. Blind Rage or Transient Fortitude are viable if negative efficiency is offset by swap windows and Arcane Energize procs.

Do not slot mods that only buff inactive Wingman weapon stats unless testing idle farm setups. Shared ability mod slots are too scarce for narrow Wingman gains.

Recommended Arcanes

Arcane Energize remains top tier for energy-hungry constellation rotations. Proc on ability kills or grouped clears to refill between clash cycles. Arcane Guardian or Arcane Grace for Steel Path survival. Arcane Avenger synergizes with clash crit bonuses when crit chance stacks apply to blast packets—confirm patch interactions.

New Update 43 arcanes—Primary Compression, Arcane Sculptor, Secondary Cryogenic, Melee Assimilation—slot on weapons rather than frame arcanes; see the Arcanes tier page for rankings. Frame arcanes stay Energize plus Guardian or Grace for most players. Secondary Cryogenic on slash-status weapons complements Orion identity without occupying frame slots.

Archon Shards: choose shards that boost ability strength, duration, or survival consistent with dual-brother pooling. Do not split shard plans per brother; shards apply to the dual frame entity.

Steel Path Loadout Notes

Steel Path loadouts tighten survival and burst timing. Prioritize Adaptation or damage reduction, keep strength high enough for meaningful clash despite attenuation, and use operator or focus schools for invulnerability during clash dodge placement. Primary weapons with high armor bypass or incisor meta weapons cover boss phases between clash windows.

Document two saved loadouts in arsenal: one public starchat-friendly range build, one Steel Path survival build with narrower range and higher strength. Swap primary brother at Pontis Tower when Helminth subsume targets different brother per loadout—free change reduces friction.

Best builds are starting points. Riven weapons, owned primed mod ranks, and arcane rank determine exact slot choices. Test in Simulacrum with enemies at your mission level plus fifteen before committing forma.