Step-by-step guide
Everything you need to get it into your arsenal, in order.
Mastery Rank required: MR 14 Foundry time: 12h Total credits: 15,000
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Farm the components
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Tatsu Prime Blueprint Drops from relics: Axi N10 Vaulted · 16.7% rad · ~2 expected openings -
Tatsu Prime Blade Drops from relics: Axi C9 Vaulted · 20% rad · ~2 expected openings -
Tatsu Prime Handle Drops from relics: Axi T10 Vaulted · 10% rad · ~3 expected openings
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Gather the resources
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Orokin Cell ×15 Ceres · Saturn · Deimos
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Craft it in the foundry
Foundry cost: 15,000 credits
Build time: 12h
Claim it and equip it. Done, Tenno.
Each run has a 34.39% chance. The curve is 1−(1−p)ⁿ: there is never a guarantee, only growing confidence.
Farming assumes a radshare squad for relics and the planner’s per-mission timings (estimated/derived, labeled on each page). The foundry runs on its own: you can play meanwhile.