Impaired - Reduces CRIT and Epic proc chance to 0%. NOTE: Can't be cleansed and doesn't wear off.
Type: debuff - Category: Disable, Attack
See also: | 
Chilled | 
Cryosleep | 
Frozen | 
Impaired | 
Magic Prism | 
Paralysis | 
Silenced | 
Spirit Linked
Heroes
The following heroes have or can inflict/apply Impaired:
Combat Prowess (Trait): Melee physical attacks have a 100% base chance to Impair on hit (reduces Crit and Epic proc chance to 0%).
Spectrum Shot (Basic Attack): Basic Ranged Elemental attack, where element is the counter of the selected enemy. Chance to Impair the target for 1 turn and apply Venom.
Immunity
Constructs are immune to all debuffs.
The following heroes are immune to Impaired:
Living Stone (Trait): Immune to all debuffs but can be healed normally.
Construct (Trait): Cannot be healed but is invulnerable to all Debuffs.
Construct (Trait): Cannot be healed but is invulnerable to all Debuffs.
Construct (Trait): Cannot be healed but is invulnerable to all Debuffs.
Dryad Ice (Trait): Starts dungeons in Ice Block, reducing damage taken (90% Damage Reduction) and Debuff immune until their first turn. Can't be stolen, copied, or purged.
You Can't Catch Me! (Trait): Flying allies can't have buffs removed or debuffs added by non-Flying enemies.
Ambush Tactics (Special Attack): Ranged Physical attack on target enemy and all Ranged allies attack the same target, then gain Stealth and become Invulnerable for 1 turn. Starts Powered.
Ice Block (Trait): Starts dungeons in Ice Block, reducing damage taken (90% Damage Reduction) and Debuff immune until his first turn. Can't be stolen, copied, or purged.
Living Stone (Trait): Immune to all debuffs but can be healed normally.
Construct (Trait): Cannot be healed but is invulnerable to all Debuffs.
The Last Word (Trait): Slow allies and self take 30% reduced damage from Fast enemies. Slow allies revenge attacks twice. Slow allies can't have buffs removed or debuffs added by fast enemies.