The Undaunted skill-line is part of the "Guild" category in the Elder Scrolls Online. The Undaunted skill-line has active skills and passives. The Undaunted skill-line focuses on group utility. The Undaunted are a dungeon delver adventurers, they are always present with anything dungeon and trial related.

How do you unlock the Undaunted skill-line?

To unlock the Undaunted skill-line you have to join the Undaunted. Depending on your alliance, this will be in different locations. It is recommended to unlock the Undaunted skill-line as fast as possible to not miss out on leveling the skill-line with your new character. If you do dungeons without having the Undaunted skill-line unlocked, you won't make progression towards level increase.

Ebonheart Pacts Undaunted Enclave can be found in the Mournhold city in the Deshaan zone.
Aldmeri Dominions Undaunted Enclave can be found in the Elden Root city in the Grahtwood zone.
Daggerfall Covenants Undaunted Enclave can be found in the Wayrest city in the Stormhaven zone.

How do you level up the Undaunted skill-line?

To level up the Undaunted skill-line you have to complete dungeon quests. Both Normal and Veteran dungeon quests count towards the Undaunted skill-line. However, in contrary to the Undaunted skill-line itself, the skills are leveled up by gaining experience from killing any monsters or completing quests. Completing dungeons quests is only a requirement towards the level of the skill-line itself, but not the progress on leveling up skills.

The skill tooltip numbers are based on a naked level 50 character without any skills, passives, attributes and champion points allocated. Your damage numbers will change depending on what gear, skills, attributes, champion points, enchantments or buffs your character has.

Undaunted Skill line progress awarded by completing:

Active abilities
Blood Altar Blood Altar	Sacrifice your life essence to conjure a fountain of blood to apply Minor Lifesteal to enemies in the area, healing you and your allies for 600 Health every 1 second when damaging them. Allies in the area can activate the Blood Funnel synergy, healing for 40% of their Max Health.
Overflowing Altar Overflowing Altar	Sacrifice your life essence to conjure a fountain of blood to apply Minor Lifesteal to enemies in the area, healing you and your allies for 600 Health every 1 second when damaging them. Allies in the area can activate the Blood Feast synergy, healing for 65% of their Max Health. The synergy heals allies for more. Reduces the cost as the ability ranks up.
Sanguine Altar Sanguine Altar	Sacrifice your life essence to conjure a fountain of blood to apply Minor Lifesteal to enemies in the area, healing you and your allies for 600 Health every 1 second when damaging them. Allies in the area can activate the Blood Funnel synergy, healing for 40% of their Max Health. Increases the duration and reduces the cost.
Trapping Webs Trapping Webs	Hurl webs to ensnare your foes, reducing the Movement Speed of enemies in the area by 50% and dealing 1742 Physical Damage. After 10 seconds the webs explode, dealing 2323 Poison Damage to enemies within. A ranged ally can activate the Spawn Broodling synergy on an affected enemy, dealing 2249 Poison Damage to them and summoning a spider to attack for 10 seconds. The spider bites enemies for 673 Physical Damage.
Shadow Silk Shadow Silk	Hurl webs to ensnare your foes, reducing the Movement Speed of enemies in the area by 50% and dealing 1799 Physical Damage. After 10 seconds the webs explode, dealing 2399 Poison Damage to enemies within. A ranged ally can activate the Black Widow synergy on an affected enemy, dealing 2249 Poison Damage to them and summoning a spider to attack for 10 seconds. The spider bites enemies for 673 Physical Damage and can poison them for 4488 Poison Damage over 10 seconds. The synergy summons a more powerful spider, which deals additional damage over time.
Tangling Webs Tangling Webs	Hurl webs to ensnare your foes, reducing the Movement Speed of enemies in the area by 50% and dealing 1742 Physical Damage. After 10 seconds the webs explode, dealing 2323 Poison Damage to enemies within. A ranged ally can activate the Arachnophobia synergy on an affected enemy, dealing 2249 Poison Damage to them, fearing them for 4 seconds, and summoning a spider to attack for 10 seconds. The spider bites enemies for 673 Physical Damage. The synergy also fears the enemy.
Inner Fire Inner Fire	Ignite the fires of hate in an enemy's heart, dealing 1045 Flame Damage and taunting them to attack you for 15 seconds. An ally targeting the taunted enemy can activate the Radiate synergy, dealing 1344 Flame Damage to them over 3 seconds then an additional 2249 Flame Damage to them and other nearby enemies.
Inner Beast Inner Beast	Ignite the fires of hate in an enemy's heart, dealing 2160 Physical Damage, taunting them to attack you, and applying Minor Maim and Minor Vulnerability for 15 seconds, reducing their damage done and increasing their damage taken by 5%. An ally targeting the enemy can activate the Radiate synergy, dealing 1344 Flame Damage to them over 3 seconds then an additional 2249 Flame Damage to them and other nearby enemies. Converts into a Stamina ability and deals increased Physical Damage. Applies Minor Vulnerability and Maim to the enemy.
Inner Rage Inner Rage	Ignite the fires of hate in an enemy's heart, dealing 1079 Flame Damage and taunting them to attack you for 15 seconds. Up to 3 allies targeting the taunted enemy can activate the Radiate synergy, dealing 1344 Flame Damage to them over 3 seconds then an additional 2249 Flame Damage to them and other nearby enemies. The synergy can now be activated by up to 3 allies.
Bone Shield Bone Shield	Surround yourself with a whirlwind of bones, gaining a damage shield that absorbs up to 4958 damage for 6 seconds. This ability scales off your Max Health. An ally near you can activate the Bone Wall synergy, granting the ally and up to 5 other allies a damage shield equal to 30% of their Max Health for 6 seconds.
Bone Surge Bone Surge	Surround yourself with a whirlwind of bones, gaining a damage shield that absorbs up to 5121 damage for 6 seconds. This ability scales off your Max Health. An ally near you can activate the Spinal Surge synergy, granting up to 6 allies a damage shield that absorbs up to 30% of their Max Health for 6 seconds and Major Vitality, increasing their healing received and damage shield strength by 12%. Upgrades the synergy to grant Major Vitality.
Spiked Bone Shield Spiked Bone Shield	Surround yourself with a whirlwind of bones, gaining a damage shield that absorbs up to 4958 damage for 6 seconds and returns 100% of direct damage absorbed back to the enemy. This ability scales off your Max Health. An ally near you can activate the Bone Wall synergy, granting the ally and up to 5 other allies a damage shield equal to 30% of their Max Health for 6 seconds. Absorbing direct damage causes you to deal a portion of the damage back to enemies if they are in melee range.
Necrotic Orb Necrotic Orb	Project a globe of annihilation that slowly floats forward for 10 seconds, dealing 316 Magic Damage every 1 second to nearby enemies. An ally near the globe can activate the Combustion synergy, causing the orb to explode for 2249 Magic Damage to nearby enemies and restore 3960 Magicka or Stamina to the ally, whichever maximum is higher.
Energy Orb Energy Orb	Project a globe of regeneration that slowly floats forward, healing for 489 Health every 1 second to you and nearby allies. An ally near the globe can activate the Healing Combustion synergy, causing the orb to explode and heal for 2249 Health to nearby allies and restoring 3960 Magicka or Stamina to the activator, whichever maximum is higher. The orb heals allies instead of damaging enemies and moves faster.
Mystic Orb Mystic Orb	Project a globe of annihilation that slowly floats forward, dealing 326 Magic Damage every 1 second to nearby enemies. While the orb is active you gain 100 Health, Magicka, and Stamina Recovery. An ally near the globe can activate the Combustion synergy, causing the orb to explode for 2249 Magic Damage to nearby enemies and restore 3960 Magicka or Stamina to the ally, whichever maximum is higher. Increases your Health, Magicka, and Stamina Recovery while active.
Passive abilities
Undaunted Command Undaunted Command	Activating a synergy restores 4% of your Max Health, Stamina, and Magicka. Health 480 Stamina, and 480 Magicka.
Undaunted Mettle Undaunted Mettle	Increases your Max Health, Stamina, and Magicka by 2% per type of Armor (Heavy, Medium, Light) that you have equipped.

Active abilities

Blood Altar Blood Altar

Sacrifice your life essence to conjure a fountain of blood to apply Minor Lifesteal to enemies in the area, healing you and your allies for 600 Health every 1 second when damaging them. Allies in the area can activate the Blood Funnel synergy, healing for 40% of their Max Health.

Overflowing Altar Overflowing Altar

Sacrifice your life essence to conjure a fountain of blood to apply Minor Lifesteal to enemies in the area, healing you and your allies for 600 Health every 1 second when damaging them. Allies in the area can activate the Blood Feast synergy, healing for 65% of their Max Health.

The synergy heals allies for more. Reduces the cost as the ability ranks up.

Sanguine Altar Sanguine Altar

Trapping Webs Trapping Webs

Hurl webs to ensnare your foes, reducing the Movement Speed of enemies in the area by 50% and dealing 1742 Physical Damage. After 10 seconds the webs explode, dealing 2323 Poison Damage to enemies within. A ranged ally can activate the Spawn Broodling synergy on an affected enemy, dealing 2249 Poison Damage to them and summoning a spider to attack for 10 seconds. The spider bites enemies for 673 Physical Damage.

Shadow Silk Shadow Silk

Hurl webs to ensnare your foes, reducing the Movement Speed of enemies in the area by 50% and dealing 1799 Physical Damage. After 10 seconds the webs explode, dealing 2399 Poison Damage to enemies within. A ranged ally can activate the Black Widow synergy on an affected enemy, dealing 2249 Poison Damage to them and summoning a spider to attack for 10 seconds. The spider bites enemies for 673 Physical Damage and can poison them for 4488 Poison Damage over 10 seconds.

The synergy summons a more powerful spider, which deals additional damage over time.

Tangling Webs Tangling Webs

Hurl webs to ensnare your foes, reducing the Movement Speed of enemies in the area by 50% and dealing 1742 Physical Damage. After 10 seconds the webs explode, dealing 2323 Poison Damage to enemies within. A ranged ally can activate the Arachnophobia synergy on an affected enemy, dealing 2249 Poison Damage to them, fearing them for 4 seconds, and summoning a spider to attack for 10 seconds. The spider bites enemies for 673 Physical Damage.

The synergy also fears the enemy.

Inner Fire Inner Fire

Ignite the fires of hate in an enemy's heart, dealing 1045 Flame Damage and taunting them to attack you for 15 seconds. An ally targeting the taunted enemy can activate the Radiate synergy, dealing 1344 Flame Damage to them over 3 seconds then an additional 2249 Flame Damage to them and other nearby enemies.

Inner Beast Inner Beast

Ignite the fires of hate in an enemy's heart, dealing 2160 Physical Damage, taunting them to attack you, and applying Minor Maim and Minor Vulnerability for 15 seconds, reducing their damage done and increasing their damage taken by 5%. An ally targeting the enemy can activate the Radiate synergy, dealing 1344 Flame Damage to them over 3 seconds then an additional 2249 Flame Damage to them and other nearby enemies.

Converts into a Stamina ability and deals increased Physical Damage. Applies Minor Vulnerability and Maim to the enemy.

Inner Rage Inner Rage

Ignite the fires of hate in an enemy's heart, dealing 1079 Flame Damage and taunting them to attack you for 15 seconds. Up to 3 allies targeting the taunted enemy can activate the Radiate synergy, dealing 1344 Flame Damage to them over 3 seconds then an additional 2249 Flame Damage to them and other nearby enemies.

The synergy can now be activated by up to 3 allies.

Bone Shield Bone Shield

Surround yourself with a whirlwind of bones, gaining a damage shield that absorbs up to 4958 damage for 6 seconds. This ability scales off your Max Health. An ally near you can activate the Bone Wall synergy, granting the ally and up to 5 other allies a damage shield equal to 30% of their Max Health for 6 seconds.

Bone Surge Bone Surge

Surround yourself with a whirlwind of bones, gaining a damage shield that absorbs up to 5121 damage for 6 seconds. This ability scales off your Max Health. An ally near you can activate the Spinal Surge synergy, granting up to 6 allies a damage shield that absorbs up to 30% of their Max Health for 6 seconds and Major Vitality, increasing their healing received and damage shield strength by 12%.

Upgrades the synergy to grant Major Vitality.

Spiked Bone Shield Spiked Bone Shield

Surround yourself with a whirlwind of bones, gaining a damage shield that absorbs up to 4958 damage for 6 seconds and returns 100% of direct damage absorbed back to the enemy. This ability scales off your Max Health. An ally near you can activate the Bone Wall synergy, granting the ally and up to 5 other allies a damage shield equal to 30% of their Max Health for 6 seconds.

Absorbing direct damage causes you to deal a portion of the damage back to enemies if they are in melee range.

Necrotic Orb Necrotic Orb

Project a globe of annihilation that slowly floats forward for 10 seconds, dealing 316 Magic Damage every 1 second to nearby enemies. An ally near the globe can activate the Combustion synergy, causing the orb to explode for 2249 Magic Damage to nearby enemies and restore 3960 Magicka or Stamina to the ally, whichever maximum is higher.

Energy Orb Energy Orb

Project a globe of regeneration that slowly floats forward, healing for 489 Health every 1 second to you and nearby allies. An ally near the globe can activate the Healing Combustion synergy, causing the orb to explode and heal for 2249 Health to nearby allies and restoring 3960 Magicka or Stamina to the activator, whichever maximum is higher.

The orb heals allies instead of damaging enemies and moves faster.

Mystic Orb Mystic Orb

Project a globe of annihilation that slowly floats forward, dealing 326 Magic Damage every 1 second to nearby enemies. While the orb is active you gain 100 Health, Magicka, and Stamina Recovery. An ally near the globe can activate the Combustion synergy, causing the orb to explode for 2249 Magic Damage to nearby enemies and restore 3960 Magicka or Stamina to the ally, whichever maximum is higher.

Increases your Health, Magicka, and Stamina Recovery while active.

Passive abilities