Idira Tlass

Explore a powerful build for Idira Tlass in Warhammer 40,000: Rogue Trader. Optimize her psyker abilities, talents, and characteristics for maximum effectiveness.

Idira is an unsanctioned psyker from a Forsaken World, a planet cut off from the Imperium for a prolonged period. She is the Rogue Trader's personal diviner and is recruited during the prologue.

Idira - Build

Here is a possible build for her:

Homeworld	Forsaken World (Humanity's Finest - Willpower)
Origin	Unsanctioned Psyker - Divination + Telepathy
Characteristics	WS: 30, BS: 30, STR: 30, TGH: 30, AGI: 40, INT: 30, PER: 45, WP: 60, FEL: 30
Skills	ATH: 30, CAR: 30, DEM: 40, LGC: 30, LoI: 30, LoW: 35, LoX: 30, MED: 30, TEC: 30, AWA: 60, COE: 30, COM: 30, PER: 30
Conviction	Heretical - Adherent
Talents	-
Flagship Abilities	High Tide, Exact Prediction

Level Progression:

• Lvl 1: Operative - Analyse Enemies, Forewarning, Psychic Shriek
• Lvl 2: Operative - +10 Awareness
• Lvl 3: Operative - Expose Weakness
• Lvl 4: Operative - Dismantling Attack, Uncanny Sight
• Lvl 5: Operative - +5 Willpower, Second Sight
• Lvl 6: Operative - +5 Willpower, Pain Channelling
• Lvl 7: Operative - +10 Awareness, Sensory Deprivation
• Lvl 8: Operative - Psychic Barrage, Fatebringer
• Lvl 9: Operative - +10 Lore (Warp), Dismantling Attack (Upgrade II)
• Lvl 10: Operative - +5 Perception, +10 Lore (Warp)
• Lvl 11: Operative - +10 Medicae, Psyker Minoris
• Lvl 12: Operative - Biomancy, Weak Hearts
• Lvl 13: Operative - +5 Perception, Stronger Together
• Lvl 14: Operative - +5 Ballistic Skill, Warp Minds
• Lvl 15: Operative - Dismantling Attack (Upgrade I)
• Lvl 16: Bounty Hunter - Hunt Down the Prey
• Lvl 17: Bounty Hunter - Invigorate
• Lvl 18: Bounty Hunter - Savour the Kill
• Lvl 19: Bounty Hunter - Wild Hunt
• Lvl 20: Bounty Hunter - +1 AP, +5 Willpower, Psyker Majoris
• Lvl 21: Bounty Hunter - +5 Willpower, Thriving in Peril
• Lvl 22: Bounty Hunter - Psychic Assault
• Lvl 23: Bounty Hunter - +10 Lore (Warp), Adrenaline Surge
• Lvl 24: Bounty Hunter - +5 Perception, Subtle Manipulation
• Lvl 25: Bounty Hunter - Power Conduit
• Lvl 26: Bounty Hunter - +5 Perception, +10 Lore (Warp)
• Lvl 27: Bounty Hunter - Wild Hunt (Upgrade II)
• Lvl 28: Bounty Hunter - Share the Spoils
• Lvl 29: Bounty Hunter - +5 Ballistic Skill, +10 Awareness
• Lvl 30: Bounty Hunter - Mind Rupture, Psyker Terminus
• Lvl 31: Bounty Hunter - Characteristic Training: Willpower
• Lvl 32: Bounty Hunter - +5 Ballistic Skill, +10 Awareness
• Lvl 33: Bounty Hunter - Mind Siege
• Lvl 34: Bounty Hunter - Base Skill: Lore (Warp)
• Lvl 35: Bounty Hunter - Wild Hunt (Upgrade III)
• Lvl 36: Exemplar - Combat Meditation, Advice and Guidance
• Lvl 37: Exemplar - +10 Lore (Warp), Pounce
• Lvl 38: Exemplar - +5 Willpower, Characteristic Training: Perception
• Lvl 39: Exemplar - +10 Lore (Warp), Warp Speed
• Lvl 40: Exemplar - Eager for Battle, Psyker Extremis
• Lvl 41: Exemplar - +5 Willpower, Fresh Target
• Lvl 42: Exemplar - +5 Perception, Regeneration
• Lvl 43: Exemplar - Hunting Surge, Advanced Skill: Lore (Warp)
• Lvl 44: Exemplar - +10 Awareness, Perfection Under Fire
• Lvl 45: Exemplar - +1 AP
• Lvl 46: Exemplar - +10 Awareness, Visions of Doom
• Lvl 47: Exemplar - +10 Lore (Xenos), Combat Insight
• Lvl 48: Exemplar - +5 Perception, Predicted Downfall
• Lvl 49: Exemplar - +5 Ballistic Skill, +10 Lore (Xenos)
• Lvl 50: Exemplar - Malign Influence, Mental Breach
• Lvl 51: Exemplar - +10 Lore (Xenos), Withdraw
• Lvl 52: Exemplar - Strange Vitality, Characteristic Training: Ballistic Skill
• Lvl 53: Exemplar - +5 Ballistic Skill, Metabolic Overcharge
• Lvl 54: Exemplar - Degraded Defence, Biophysical Distortion
• Lvl 55: Exemplar - +1 AP

Idira doesn't get anything from being an Operative so we basically ignore Operative abilities and talents altogether and concentrate on her psyker abilities. We increase Perception and Ballistic Skill to boost the Second Sight and Psychic Barrage talents. Cassia can debuff enemy Willpower by massive amounts which makes the Sensory Deprivation ability quite deadly in the early game - the toughest bosses are a lot less fearsome when they're blinded. The Weak Hearts talent combos with this to make blinded enemies take more damage.

The combo of Hunt Down the Prey and Savour the Kill from the Bounty Hunter levels is a massive boost to your action economy. Here's how it works: Idira gets an extra turn (from Cassia, Jae or the Missionary Oath amulet) and marks a weak enemy as prey. When another party member kills the marked enemy, Idira will get another 2AP turn during which time she marks another weak enemy and casts a couple of psy abilities. She will easily use enough abilities to degrade all enemies on the field through the Warp Minds talent. The first Wild Hunt upgrade will give her more charges of Hunt Down the Prey to continue the cycle.

Being an unsanctioned psyker, there is always a danger that something bad will happen when Idira uses a psy power. You can use Cassia's talents and abilities to keep veil degradation at a manageable level, preventing terrible things from happening. You can also use psychic phenomena as an asset through the Warp Conductor gloves which you find during Idira's first companion quest early-ish in Chapter 2. These increase psy power when psychic phenomena or perils of the warp are triggered, creating a positive feedback loop of increasing psy power and more frequent side effects. When she's eventually ready to use a damaging ability or a lightning staff, big numbers will pop out.

Idira - Companion Quests

• Echo of the Past: After making a warp jump. Vigdis will report that Lady Theodora has been seen on the lower decks and that Idira has been seen with her. Head down to the Macro-Cannon Chamber to investigate.
• The Door: After returning.