Teshin is the 
Conclave Master, who can be found within the Conclave Hall of the Relays. He is responsible for the management of the Conclave PvP System, providing incentives through various rewards that can be earned through Conclave battles, as well as The Steel Path game mode.
He also somehow made his way into Duviri within the Void, taking refuge within Teshin's Cave while serving as the Drifter's mentor.
Lore & History
General
Teshin is an individual from the 
Orokin era, who was one of the few who did not enter cryosleep. How he has remained alive for this long however, is unknown. He blames the fall of the Orokin on the Lotus, who led the 
Tenno to become "complacent like oxen"
Teshin references the imminent arrival of the 
Sentients by insisting the Tenno use the Conclave to fight their greatest enemy, themselves, in order to grow stronger and to prepare themselves for 'horrors' beyond the Outer Terminus.
Natah
After the Lotus abruptly breaks off communication with the Tenno, Teshin makes contact, offering to guide the player and help them figure out why. By the time the Lotus resurfaces, the Tenno and Teshin are already hot on the trail of Tyl Regor and his excavation team.
Notably, Tyl Regor calls Teshin a "pseudo-Tenno," and implies at least some familiarity between the two.
The War Within
During this quest, it is revealed that Teshin is one of the Dax Soldiers, bearing the epithet "Teshin Dax", one of the mighty warrior caste created by the Orokin and used as their personal guardians. Unfortunately for him, the Elder of the Grineer Queens possesses a Kuva 
Scepter, marking her as a member of the Orokin Elite. As result of his Dax heritage, Teshin is mentally incapable of refusing her orders, though his loathing for the Twins is made quite clear.
In the quest, Teshin suggests that Margulis did a disservice to Tenno by concealing and erasing their past. Partly to rectify this and partly to save the player's life, Teshin guides the player's Operator (via astral projection, it is assumed) through a mountain temple on Earth, to an Orokin Yuvan Theater previously used for countless Orokin Continuity rituals. Thanks to Teshin's guidance the player's Operator regains full use of their powers, and transfers into the Kuva Fortress using their Warframe. In the ensuing battle the Queens' Guardians and Teshin are defeated, and the Elder Queen loses possession of her Scepter, freeing Teshin from her thrall.
The New War
As the Sentients invade the Origin System, the Tenno, forming an unlikely alliance with the 
Grineer and 
Corpus, push toward the fleet in the Veil Proxima. On the Railjack, Teshin instructs the Tenno to bring their ship close to the Sentient mothership and slingshots inside, but denies them entry due to the Orphix fields.
Teshin drops in from the ceiling and destroys an Aerolyst. As he searches for the scattered Orphix fields, he tells Ordis that he doesn't need his help and orders him to switch off. Along the way, he discovers captured Grineer and Corpus, and later encounters a strange red projection that makes him slowly recall reprimanding the Tenno before shrugging off its effects.
After destroying all the Orphix and defeating their Typholyst guardians, Teshin chooses not to call the Tenno but instead decides to scout ahead. After making the jump, Teshin is captured and forced to don a Narmer Veil, causing him to become deluded into believing the Tenno killed his presumed lover, Valeria, while Ballas tortures the Lotus by forcing her to watch. As Teshin fights off Erra and his brainwashing, he eventually collapses and forces the veil off— possibly hinting to the Operator that the device can be disabled by force. In Teshin's final moments, Erra deems him a lost cause, grabbing him, crushing his helmet, and leaving him for dead.
In the aftermath of these events, Teshin falls into the void, presumably through the portal Ballas opens, and lands within Duviri, later becoming the Drifter's Mentor.
After the completion of The New War, Teshin is replaced by a grey hologram.
Angels of the Zariman
When entering the Dormizone as the Drifter, Teshin's swords would mysteriously manifest for a time until Update 32.3 (2023-02-15), leaned up against a closed door and infused with grey Void-like energy, serving as an early nod to the Teshin of The Duviri Paradox. This door would later open up in Update 33.0 (2023-04-26) to be a gateway into the realm of Duviri, into Teshin's Cave.
The Duviri Paradox
Within the Void, it is revealed that Teshin was pulled into the portal during The New War after Erra crushed his head, along with his Narmer Veil, which sits tarnishing, unused, on a Narmer banner in his cave.[1] As he fell through the sky, he crashed into the lake on the island now known as Hermit's Landing. Teshin was then dragged back to shore and healed by Mathila.[2]
He appears in Duviri as an old, wizened, and retired Dax carrying around a walking stick, and owns a pet Rablit which the Drifter named Sol, Terra, or Lua. When the Drifter arrives in Teshin's Cave, Teshin instructs them on using Warframes received from outside the walls of the Void while offering his swords 
Sun & Moon.
Meanwhile, the mad ruler Dominus Thrax grows increasingly agitated with the Drifter's defiance. He eventually locates and captures Teshin, leaves behind an imposter who is later killed by the Rablit, and has him executed. Teshin dies before the Drifter, requesting they take care of his pet and acknowledges their growth.
The Drifter confronts Dominus Thrax and, after learning that the Drifter was the real master of Duviri all along, uses the throne's time-rewinding ability to resurrect Teshin, but returns Thrax to power which they deem to be a fair trade.
Gameplay
Teshin is a playable character during The New War.
- Teshin has 1200 health and 225 shields.
- Teshin uses Sun & Moon as his melee.
- Teshin has three "abilities":
- His first ability infuses his weapons with
Heat and changes his stance to 
Carving Mantis. - His second ability infuses with
Cold and stance changes to Crossing Snakes. - His third ability infuses with
Electricity and stance changes to Swirling Tiger. - Sentient enemies are protected by elemental shields that can only be destroyed with the corresponding element.
- His first ability infuses his weapons with
- Teshin can perform most maneuvers available to Warframes, including sliding and double jumping, but not bullet jumping.
- Teshin can throw
Orvius with the primary fire button to stun enemies. He can then lasso onto it and make long jumps with Alternate Fire.
Trivia
- His voice actor is Sean Phillips.
- His helmet makes him look similar to a Kappa, a Japanese mythological water imp with a plate full of water on the top of its head.
- The style itself is also reminiscent of a kasa, a traditional Japanese hat commonly worn by monks and warriors.
- Teshin is the second syndicate leader to have multiple intro voice lines, with the first being Cephalon Suda.
- Teshin's Sun & Moon nikanas both have Ymir-Form Gemini Nikana Sheaths. He is also able to call his blades to his hands in the event he is disarmed as indicated in The War Within.
- Following Update 23.0 (2018-06-15), his sheathes have been replaced by Nikana Dax Skin. However he still erroneously uses Ymir-Form Gemini in some The War Within cutscenes.
- Teshin is likely derived from Deshin Shekpa, the 5th head of the Kagyu school of Tibetan Buddhism.
- Tyl Regor once referred to Teshin as a "pseudo-Tenno" due to his affiliation despite not being one.
- Teshin's cape often vanishes during cutscene sequences during The War Within and The New War
Gallery
Patch History
Update 31.1 (2022-02-09)
- Fixed a typo in a Daily Tribute message from Teshin.
Hotfix 29.3.2 (2020-11-05)
- Increased resolution of Teshin's textures (because you know he's handsome).
Update 19.6 (2017-01-11)
- Teshin’s Conclave Affinity Inbox message will no longer open automatically. This was resulting in Conclave Affinity being claimed and lost if you were maxed out.
See Also
- ↑ When inspecting the Narmer Veil inside Teshin's Cave.
- Drifter: "How'd you end up here, anyway?"
- Teshin: "Through the eye of a storm... I'm not sure if I was dead or alive at the time. You?"
- ↑ "In all the ages of Thrax's reign, only two strangers have ever known to come to Duviri. One was the monk, Teshin, who fell from the sky into the lake on the island we now call Hermit's Landing. Seemingly lifeless, he was dragged ashore by Mathila who nursed his return to health. I have never known a constitution to match his; yet unlike us, he has... deteriorated... with the passing of time." - Acrithis, Lost Islands of Duviri