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Osgrun the Defiler - Guide, Masteries, GearLegendary

Osgrun the Defiler — guide

Legendary DwarvesAlly: Nyresan UnionRole: Support Element: Magic
Speed109
HP19815
Defense1101
Attack1156
Author: RAID GURU Editorial Updated: 21.10.2026 Reading: ~2 min 0 reviews

Build

Artifact sets
SpeedReflexRelentlessPerceptionProtectionPinpointFeral
Key masteries
LifedrainSurvival SpeedRevival BlessingPower ResetSkill AdeptParting GiftPuppetmasterPatient RefugeRevival's BoonBolstered Defense
Blessings
BrimstoneIntimidating presence
Relics
ChronocubeHarp of KasbielEternal Soulgaol

The build is a guideline: the first sets in the list fit most often. Adapt it to your artifacts and goals.

Guide and skills

Osgrun the Defiler is a Legendary champion in RAID: Shadow Legends from the Dwarves faction (Nyresan Union), role — Support, affinity — Magic.

Skills

SkillDescriptionLevel Upgrades

Obsidian Blade

Attacks an enemy.
Has a 50% (75%) chance to increase the cooldown of a random active skill of the target by 2 turns. Also fills the Turn Meters of all team members by 10%.
Damage based on [ATK] = 4.5 × [ATK]

Effects: Fills allies' Turn Meters, Increases skills' cooldowns

Lvl 2 Damage +10%
Lvl 3 Debuff chance: +10%
Lvl 4 Debuff chance: +15%

Magic of Iret

Cooldown: 5 turns

Has a 75% (100%) chance of removing buffs from all enemies and decreasing their Turn Meter by 20% if their Turn Meter is equal to or less than 50%. If an enemy's Turn Meter is over 50%, decreases it to 50%.
Has a 75% (100%) chance of placing a Stun debuff for 1 turn on enemies whose Turn Meter was decreased to 50%.

Effects: Stun, Removes buffs, Decreases Turn Meter

Lvl 2 Debuff chance: +10%
Lvl 3 Debuff chance: +15%
Lvl 4 Cooldown -1
Lvl 5 Cooldown -1

Unconquered by Death

Cooldown: 6 turns

Places a 50% [Increase ATK] buff and a 7.5% [Decrease DEF] debuff on all allies for 2 turns, then teams up with all allies (Blender) who will use their default skills to attack the enemy. If the target dies, decreases the cooldown of all allies' active skills by 1 turn, except this Champion's.

Effects: 50% Increase ATK, 7.5% Weaken, Joint Attack, Decreases skill cooldowns

Lvl 2 Cooldown -1
Lvl 3 Cooldown -1

Whisper of Evil [P]

Cooldown: 4 turns

Passive Effect: Allies deal 20% more damage to enemies under Stun.
Active Effect: Each time an ally dies, activates its A2 skill, Iret Magic.
The skill is not put on cooldown. If several Champions with this skill are on the team, it only triggers for one of them.
AuraIncreases Ally SPD in Arena battles by 28%.

Where to get

Sacred Shardmain source
Ancient Shardvery rare chance
Events and fusionsstay tuned

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Question — answer

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Video - Guide