Critical Hit

• Harrow breaks free of his shackles in a whirlwind of impenetrable energy, imbuing himself and allies inside his Affinity Range with complete invulnerability to damage and Status Effect immunity for 3 / 4 / 5 / 6 seconds. While invulnerable, any enemy damage prevented by all affected players during this time accumulates into a total pool.
  • Invulnerability duration is affected by Ability Duration.
  • Affinity Range is not affected by Ability Range but is affected by the Mending Unity passive in the Vazarin focus school, and can be temporarily increased with Fosfors.
  • Status effect immunity also protects against knockdown and stagger.
• After the invulnerability phase, all affected players receive the Retaliation buff which provides an additive weapon critical chance bonus lasting for 6 / 8 / 10 / 12 seconds. Retaliation provides a 5% base critical chance, plus extra critical chance converted from total damage prevented at a rate of 1.50% per 100 damage points prevented. Additionally, the combined critical chance percentage is multiplied by 4 on headshot hits.
  • Retaliation duration is affected by Ability Duration.
  • Base critical chance and extra critical chance percentages are affected by Ability Strength, while damage points prevented and headshot multiplier are not.
    • Retaliation's critical chance is capped at 50% on bodyshot hits and 200% on headshot hits.
    • The critical chance applied to the weapons appears to be a flat value.
    • Critical chance seems to also be applied to melee weapons, weapon deployables ( Zenistar disc, Orvius channel throw, etc.), and Exalted weapons ( Excalibur's Exalted Blade, Ivara's Artemis Bow, etc.)
• Protection and Retaliation buffs affect both players and their Companions.
• Covenant cannot be recast while its buffs are active.
  • Multiple Harrows can cast Covenant independently of other players' active invulnerability and critical chance buffs.
• Casting animation of 3 seconds is affected by casting speed, from mods such as  Natural Talent and  Speed Drift. Casting Covenant stops Harrow's movement and actions.
• During the invulnerability phase, the current total of damage prevented is displayed to the right of the aiming reticle, represented by a shield-like emblem.
  • After the invulnerability phase, the critical chance bonus and its headshot multiplied percentage are briefly displayed at the same position, represented by a bullet-like emblem.
  • An audible whispering sound plays when each buff's duration ends.
• Covenant's buff icons for invulnerability and critical chance are displayed beside the shield and health indicators, with the critical chance bonus percentage located at the top-right of the icon and buff timers at the bottom.
• Harrow and affected allies are visibly surrounded by a gust of energy while under Covenant's effects. This visual effect expands or contracts depending on the phases of the ability, and is affected by Harrow's chosen Warframe energy color.

Main article: Lasting Covenant

Lasting Covenant is a Warframe Augment Mod for Harrow that increases Covenant's critical chance buff duration each time an enemy is killed with a headshot.

• It synergizes well with abilities that buff critical damage, such as Electric Shield and Sonar.
• Also pairs well with the Dual Toxocyst since they are at their optimal power when you are getting headshots.
• Since the critical chance applied appears to be additive, this ability can turn a Nukor modded with  Primed Target Cracker (and possibly other critical damage mods such as a Riven) into a viable critical secondary.
• Casting this while attempting to revive a teammate makes for a reliable survival strategy, as the invulnerability phase will protect you from enemy fire.
• If the mission has Environmental Hazards, like the toxic waste in the Grineer Shipyard tileset, you can use them to stack extra damage negation during the invulnerability phase.
• Covenant synergizes well with a Kitgun equipped with Pax Seeker, with its projectiles gain benefits for critical chance to headshot from this ability.
  • However, headshot kills by Pax Seeker's projectiles won't trigger  Lasting Covenant augmentation.

• Shots fired through Electric Shield by Volt and his allies will gain 50% Electricity damage, and critical damage will be multiplied by 200%.
  • Duration for both shield types is affected by Ability Duration.
  • Height and width of both shield types are not affected by Ability Range.
  • Bonuses are not affected by Ability Strength.
  • Electricity damage is effective against Machinery and Robotics but less effective against Alloy Armor.
  • The Electricity damage bonus is an additive bonus that's applied to the weapon's base damage, similar to an elemental mod. For an unmodified weapon that inflicts 100 base damage, firing through a shield will increase the total damage to 100 × (1 + 0.5) = 150. The weapon now inflicts 100 base damage and 50 Electricity damage.
  • The Electricity damage bonus combines with other elemental types to create secondary elements on non-hitscan weapons. Hitscan weapons will separately proc both elements present on the weapon and Electricity from Electric Shield.
  • Firing through multiple Shields will cause the Electricity damage bonus to stack additively (e.g., firing through 3 shields will grant a 150% Electricity damage bonus). The critical damage bonus on the other hand does not stack with additional shields.

• The 50% Electricity damage buff can apply to Mesa's Regulator pistols as well.
• Casting Ember's Fireball through an Electric Shield will change its damage type to Radiation.
• Electric Shield affects certain weapons differently
  • All primary and secondary weapons will gain Electricity damage and amplified critical damage.
    • Pellets from gunblades, like Redeemer and Sarpa, also gain the buff.
  • Thrown melee weapons, such as the Glaive, are not affected by Electric Shield.
  • Weapons that have additional sources of damage, such as the Quanta, will have their additional sources affected by Electric Shield so long as the damage can be modified. For example, firing a Torid grenade through a Shield will affect the projectile damage and the area damage. Firing a Mutalist Quanta orb through a Shield will not affect the orb's contact damage, but it will affect the orb's explosion damage.
  • Held-trigger weapons will gain hitscan properties.
• While most hostile gunfire and AoE damage are blocked by Electric Shield, weapons with innate Punch Through, such as a Scorch's Ignis, can bypass Electric Shield.
• Ability Synergy: Casting Shock through an Electric Shield will electrify it, inflicting 100% of Shock's damage to enemies that pass through it (e.g., Electric Shield will deal 260 damage if Shock's modified damage is 260).
  • The bonus damage from Volt's passive will also be stacked onto the damage from Shock (e.g., Electric Shield will deal 810 damage if Shock's modified damage is 260 and the Passive bonus is 550 at the time Shock is cast).

Main article: Transistor Shield

Transistor Shield is a Warframe Augment Mod for Volt's Electric Shield that allows allies to pick up and move Electric Shields, with no energy cost for moving them. Additionally, a percentage of enemy damage absorbed by the Electric Shield(s) will add up to Volt's Static Discharge passive.

• Multiple instances of the Static Shield can provide a 360^o wall of protection, or can be used once if backing up into a tight space, blocking enemy fire from all angles.
• Note that Electric Shield does not protect its users from above and below attacks. Placing them above and below the player can be done to counter this.