Impregnable Iron Fortress — Seven Deadly Sins: Origin armor
Impregnable Iron Fortress is an armor piece in Seven Deadly Sins: Origin (7DSO). Discover its main and sub stats, its set bonus, its random options and its reinforcement tiers.
Full gear profile updated every patch — stats, quality, set bonus and sources of Impregnable Iron Fortress.
How do I get Impregnable Iron Fortress in 7DS Origin?
The Impregnable Iron Fortress page lists its sources in Seven Deadly Sins: Origin: dungeons, bosses, crafting and rewards.
What is the set bonus of Impregnable Iron Fortress?
Impregnable Iron Fortress belongs to a gear set whose 2/4/7-piece bonuses are detailed on its page, with per-tier stats.

Impregnable Iron Fortress
A skin for Griamore from the past. It boasts unbreakable, powerful defense.
Unique Talent
Each hit on an enemy with the Special Attack inflicts additional damage equal to 24% of Attack, and Daze for 10 sec if the enemy is not Stunned or Dazed.Enemies affected by Daze have their Movement Speed decreased by 10%. Satisfies the conditions of any skill that requires the enemy to be Stunned.
Upgrade
Each reroll randomly redraws the value of one option.
Each use adds the rolled value to the option already in place.
Random Options
Each slot randomly rolls one stat from those below. 3 slot(s) available.