Keegen

The invisible marksman, legal wall hack, one shot many kills - Cyte-09!

Passive: Gains Practiced Aim when he kills an enemy by damaging their Weak Points, increasing his Critical Chance against weak points by 1% up to a maximum of 300%, lasting for the entirety of a mission.
Seek - Plant an antenna that projects a forward wave scan. Detected enemies take increased Weak Point Damage, and become visible through walls. Weapons gain Punch through.
Resupply - Throw two Elemental Ammo Packs that instantly refill the active weapon's magazine, while granting the weapon an additional instance of the selected Elemental Damage and Status Effect. Reload clears the effect. Sniper Rifles gain extra damage.
Evade - Jump backwards and become invisible for a short duration. Killing enemies on their Weak Points extends the duration and heals Cyte-09.
Neutralize - Summon the Neutralizer, Cyte-09's exalted Sniper Rifle. Bullets ricochet off Weak Points to seek out other nearby Weak Points. Alt fire lobs a Cold grenade that completely freezes enemies.

Acquisition: Main blueprint is acquired upon completion of The Hex quest. Component blueprints are acquired from Höllvania Central Mall Bounties as an uncommon drop. Alternatively Cyte-09's blueprints can be purchased from Amir of The Hex.

The stormbringer, a walking conduit, running around at the speed of sound - Volt!

Release date: 2012-10-25

Passive: Traveling along the ground between2 Volt's attacks will build up static energy, adding bonus Electricity damage toward Volt's next weapon attack or ability cast.
Shock - Launches a shocking projectile. It stuns and deals high damage to a single target and chains damage to nearby enemies.
Speed - Volt energizes his body and nearby Warframes, giving them increased speed and dexterity for a short time.
Electric Shield - Volt deploys an obstacle of energy, providing cover in any situation.
Discharge - Paralyze nearby hostiles with a damaging electric charge, this also shocks approaching enemies.

Acquisition: All blueprints can be acquired from the Tenno Lab in the dojo.

Master of magnetism, most attractive frame, magnets - how do they work? - Mag

Release date: 2012-10-25

Passive: Mag automatically Vacuums Pickups that are within 8 meters towards her (does not stack with the other Vacuum effects. DE WHY!)
Pull - Mag stuns enemies as she manifests a magnetic vortex. The vortex pulls in Polarize Shards and stunned enemies to place them directly in front of her.
Magnetize - (TAP) Enclose a target in a magnetic field that ensnares nearby enemies and deals damage over time. The field pulls Polarize Shards that orbited Mag and shrapnel into the deadly mix. (HOLD) Mag surrounds herself in a magnetic field that absorbs ranged attacks and reflects damage back in a destructive cone.
Polarize - Emit an energy pulse that depletes enemy shields and armor as it restores ally shields. Debris left over from the pulse becomes Polarize Shards. Nearby Polarize Shards orbit Mag and cut enemies, inflicting bleed status.
Crush - Magnetize the bones of nearby enemies, causing them to collapse upon themselves.

Acquisition: Main blueprint can be purchased from the Market. Component blueprints can be obtained from defeating The Sergeant on Iliad, Phobos.

The posterboy, master of the sword, the ol' reliable - Excalibur!

Release date: 2012-10-25

Passive: Excalibur has improved mastery in the Tenno art of the blade, receiving +10% Attack Speed and +10% damage bonuses for melee attacks while wielding swords, dual swords, nikanas and rapiers.
Slash Dash - Dash between enemies while slashing with the Exalted Blade.
Radial Blind - Emits a bright flash of light, blinding all enemies in a small radius for several seconds.
Radial Javelin - Launches javelins towards enemies, dealing high damage and impaling them to walls.
Exalted Blade - Summon a sword of pure light and immense power.

Acquisition: Available as one of the three starting Warframe options. Otherwise his main blueprint can be purchased from the Market, component blueprints can be obtained from defeating Lieutenant Lech Kril on War, Mars.

The fragmented one, 3 frames in one, spooky scary skeleton - Xaku!

Release date: 2020-08-25

Passive: Xaku has a 25% Dodge chance to harmlessly phase through incoming enemy weapon attacks, while protected by a 25% Damage Reduction against area of effect damage.
Xata's Whisper - Wield Void damage for all attacks from equipped weapons when activated.
Grasp of Lohk - Void Tendrils steal weapons from nearby enemies to use as your own floating, auto-targeting armament. Damage output increases based on enemy level. The number of weapons grabbed also determines the damage multiplier for The Lost: Deny's Void beam.
The Lost - Cycle through a trio of lost Warframe powers. Accuse manifests a Void fissure to corrupt enemies into allies. Gaze grasps targets in Void tendrils that capture damage and inflict it when the target is released. Deny annihilates with a beam of Void energy, wiping Sentient resistances.
The Vast Untime - Temporarily shed the outer pieces of Xaku in a destructive blast, then stalk the battlefield in a new, swifter skeletal form. Enemies damaged by the body shrapnel are rendered weaker to Void Damage. Xaku's other active abilities' duration is frozen in time and resumes once The Vast Untime expires.

Acquisition: Main blueprint is awarded upon completion of the Heart of Deimos quest. Component blueprints are acquired from Cambion Drift Bounties: the Helmet Neuroptics are obtained from Bounties lvl 15-25, Systems Systems from lvl 30-40 and Chassis Chassis - from either lvl 40-50 or Steel Path lvl 100.

The Scion of the Burning Wind, protector of Reshantur, most slippery frame - Nezha!

Release date: 2015-12-16

Passive: Nezha slides 60% faster and goes 35% farther.
Fire Walker - Blaze a trail of flames, scorching enemies and cleansing allies.
Blazing Chakram - Hurl a flaming ring that burns enemies and causes them to emit a healing blast on death. Reactivate to instantly travel to the ring's location.
Warding Halo - Create a protective ring of fire that also stuns and damage enemies who get too close.
Divine Spears - Impale nearby enemies on spears that erupt from the ground.

Acquisition: Main and component blueprints can be purchased from the Tenno Lab in the dojo.

The shield maiden, muscle mommy, justice rains from above - Hildryn!

Release date: 2019-03-08

Passive: Utilizes shields instead of energy to power her abilities. Overshields protect Hildryn's Health pool from damage types that normally bypass shields to directly affect health, such as Toxin damage and Combat Discipline's health loss per kill. Hildryn's Shield Gating grace period is 3.5 seconds when fully charged.
Balefire - Charge and launch devastating bolts of fire (the game lies, it's actually electricity).
Pillage - Pillage a percentage of Shields and Armor of nearby enemies to replenish Hildryn's own Shields and Overshields.
Haven - Create a shield aura around allies. Enemies that approach shielded allies will take damage.
Aegis Storm - Take the skies and rain Balefire rockets down on the enemy. Nearby enemies are blasted into the air where they will create an Energy Orb every few seconds. When shields run out the enemies are smashed into the ground.

Acquisition: Main blueprint can be purchased from Little Duck upon reaching Rank 2 with Vox Solaris. Component blueprints can be acquired from Exploiter Orb.

The fate manipulator, plays with loaded dice, "99% of gamblers quit before they hit it big" - Koumei!

Release date: 2024-10-02

Passive: Every 1 minute, fate selects one of Koumei's equipped weapons to impart randomized Status Effects when dealing Damage for 1 minute.
Kumihimo - Weave the threads of destiny. Enemies who touch the threads suffer a random Elemental Status Effect. A roll of triple sixes creates threads that inflict one of every Elemental Status Effect.
Omikuji - Koumei glimpses a favorable future and the precise steps needed to reach it. Complete the challenge to earn a Decree. A roll of triple sixes grants a Decree without a challenge.
Omamori - Surround yourself with Omamori Charms, each with a chance to have enemy attacks heal you instead of damage you. The number of charms is determined by Koumei’s dice roll. A roll of triple sixes grants invulnerability for the duration of your Omamori Charms.
Bunraku - Wield your foe’s fate threads like the strings of marionettes. Koumei’s dice determine how many Status Effects foes in front of Koumei will suffer. A roll of triple sixes maximizes Status Effect stacks and extends Bunraku to enemies behind Koumei.

Acquisition: Main and component blueprints can be obtained from Shrine Defense on Saya's Visions, Earth. Alternatively they can be purchased from Koumei's Shrine in Cetus with Fate Pearls, which are dropped by the Infested Oni at the end of Shrine Defense.

Biblically accurate angel, the singing executioner, warframe pregnancies confirmed? - Jade!

Release date: 2024-06-18

Passive: Jade possess two aura slots. Enemies that enter Light's Judgment well and Glory on High's primary fire at a 10% chance are afflicted with the Judgement debuff, applying 50% Damage Vulnerability lasting for 10 seconds.
Light's Judgment - Create a well of light that heals allies and hurts enemies. Those who enter the well will be highlighted by Judgments.
Symphony of Mercy - Cycle through three songs that strengthen allies. Power of The Seven increases Ability Strength. Deathbringer increases Weapon Damage. Spirit of Resilience increases Shield Effectiveness. Extend the duration of each song by killing enemies surrounded by Judgments.
Ophanim Eyes - Jade summons an accusatory gaze that slows nearby enemies and dissolves their Shields and Armor. When the gaze falls upon allies, they can be revived from a distance.
Glory on High - Soar with destructive power. Use alternate-fire to detonate Judgments, causing an explosion of Jade Light. Enemies inside the Light's Judgment radius empower the explosion.

Acquisition: Main blueprint is acquired upon completion of the Jade Shadows quest. Component blueprints are obtained from Ascension on Brutus, Uranus, at a 5% drop rate.