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Mass Effect Wiki

Shadow Strike is a power in Mass Effect 2 and a tech power in Mass Effect 3's multiplayer mode.

Mass Effect 2

Cloak ME2 Icon.png

Power Ranks

  • Rank 1
    • Recharge Time: 9.00 seconds
    • Damage: 300.00 points
    • Incapacitate Duration: 5.00 seconds
  • Rank 2
    • Recharge Time: 9.00 seconds
    • Damage: 350.00 points
    • Incapacitate Duration: 6.00 seconds
  • Rank 3
    • Recharge Time: 9.00 seconds
    • Damage: 400.00 points
    • Incapacitate Duration: 7.00 seconds

Rank 4

Choose to evolve the power into one of the following,

Deadly Shadow Strike

  • Increases the damage inflicted when assassinating the target.
    • Recharge Time: 9.00 seconds
    • Damage: 550.0 points
    • Incapacitate Duration: 7.00 seconds

Rapid Shadow Strike

  • Reduces the cooldown by 80% if the target is killed by this power.
    • Recharge Time: 9.00 seconds
    • Damage: 450.0 points
    • Incapacitate Duration: 7.00 seconds

Player Notes

  • Using this power, Kasumi cloaks, appears behind her target and delivers a devastating sneak attack, then re-cloaks and returns to her previous location where she again uncloaks. The power only starts recharging once Kasumi returns.
  • Shadow Strike has a 2x damage multiplier against shields, armor and barriers.
  • If the player is manually casting Shadow Strike to order Kasumi to use it, targeting works similarly to any other power in that there must be a clear, unobstructed view of the intended target at the moment of casting for Kasumi to follow the order or she will say she can't do it.
  • Besides directly damaging the enemy, this power also has a distracting effect, as enemies will often turn to attack Kasumi when she appears in their midst, ignoring their previous targets. This is very useful against powerful units such as Harbinger or Scions.
  • The incapacitation only takes effect if the target is unprotected or if the strike's damage carries through to their health.
  • The power type of Shadow Strike is actually split between combat and tech—it gains the bonus for reduced cooldown from the tech upgrade but the damage type is combat, so the damage tech upgrade has no effect.
  • Even though it's a "teleporting" attack, Kasumi can't use Shadow Strike on enemies in areas unreachable by Shepard, or in places with particularly torturous terrain. She will tell you if she cannot make a particular strike.
    • Occasionally she will cloak as if the attack is going to work but it then fails and she will reappear.
    • Shadow Strike will usually fail against targets knocked down, suspended or made airborne by powers such as biotics, so avoid using such abilities against enemies you have targeted for Shadow Strike.
    • If Kasumi says she can't make a Shadow Strike you think she should be able to make, just order her again a few times and it may go through.
  • Kasumi will return to her original position after finishing a Shadow Strike. However, she will no longer be bound by any placement or hold position command. You have to re-assign the command to keep her behind cover after such a strike; luckily she will obey such a command as long as you issue it after her actual strike completes—it's not necessary to wait until she fully returns.
  • Kasumi gains temporary invulnerability during Shadow Strike, shrugging off damage that would otherwise absolutely kill her when she appears next to a target.
    • This can be used as a technique to keep Kasumi alive if she's close to death, as the invulnerability prevents the timer on her shield recharge from being interrupted, meaning she can be near death, perform a Shadow Strike, and return back to her starting point at full health/shields again.
    • On occasion Kasumi is slow or even unable to perform her attack after appearing next to her target, either because it moved, she is stunned, she is unable to get an attack angle, or because the power just decides to be wonky. This can cause the invulnerability to wear off and she can go down, sometimes in a very exposed position where reviving her would run a high risk of getting her killed again immediately.


Mass Effect 3

ME3 Shadow Strike.png

Power Ranks

Rank 1: Shadow Strike

Cloak and sneak behind your target to unleash a vicious sword attack.

Receives damage bonuses from sword upgrades.
Considered a melee attack.

  • Recharge Speed: 8 sec
  • Damage: 600

Rank 2: Recharge Speed

Increases recharge speed by 25%.

  • Recharge Speed: 6.40 sec
  • Damage: 600

Rank 3: Damage

Increases damage by 20%.

  • Recharge Speed: 6.40 sec
  • Damage: 720

Rank 4: Damage/Damage Protection


Increases damage by 30%.

  • Recharge Speed: 6.40 sec
  • Damage: 900

Damage Protection

Reduce all damage taken by 40% for 5 seconds after decloaking.

Rank 5: Electric Damage/Recharge Speed

Electric Damage

Hit your opponent with an electric attack that does 40% additional damage over 5 seconds.

Detonate this effect with other powers.

Recharge Speed

Increases recharge speed by 35%.

  • Recharge Speed: 5 sec
  • Damage: 900 (Damage), 720 (Damage Protection)

Rank 6: Damage/Shield Drain


Increases damage by 50%.

  • Recharge Speed: 6.40 sec (Electric Damage), 5 sec (Recharge Speed)
  • Damage: 1200 (Damage), 1020 (Damage Protection)

Shield Drain

Strike shields or barriers to drain their energy to refill your shields.
Increase movement speed by 15% for 4 seconds after decloaking.

Player Notes

  • Shadow Strike functions very similarly to Kasumi's power in Mass Effect 2: the player cloaks, reappears behind the target, and delivers a powerful melee attack. Unlike Kasumi's power in Mass Effect 2, in Mass Effect 3 the player does not re-cloak and return to their starting point.
  • If the enemy is unaware of the N7 Shadow when Shadow Strike is activated, the attack cannot be blocked and the user appears behind them; otherwise, foes will attempt to shoot and/or melee the Shadow, and defenses will block the attack (e.g. a Guardian's shield).
  • Shadow Strike benefits from melee damage bonuses of equipment and weapon mods as well as the melee damage evolutions of Shadow Strike, Tactical Cloak, and Sword Mastery.
  • Shadow Strike can be used on any enemy that can be selected for targeting; even obstructed enemies or difficult-to-reach places are thus vulnerable to Shadow Strike.
  • When used against specific foes:
    • Shadow Strike may be used on Phantoms and Geth Hunters even while they are invisible, if the crosshair is aligned with their hitbox.
  • As of Patch 4, Shadow Strike doesn't work against Atlases.
  • Shadow Strike is capable of instantly killing most basic-level enemies. On Gold difficulty, a double Shadow Strike from cloak (Tactical Cloak's bonus power and duration evolutions allow two strikes before breaking cloak) is effective against powerful enemies.
    • With the proper evolutions and equipment, even Platinum Phantoms can be killed by a single cloaked Shadow Strike.
  • Shadow Strike can be used to travel across the battlefield quickly, in order to escape danger and/or to reach a tactical position, since it immediately transports the user to the target.
    • Be very careful about Shadow Striking Ravagers, as they are very likely to spout an acid patch that you will be standing right in the middle of, especially if they die.
  • Unlike the Vanguard's Biotic Charge, Shadow Strike has the disadvantage of not replenishing the user's shields. This can be offset by the following:
    • The Shadow Strike Damage Protection and Shield Drain evolutions of the power.
    • The Sword Mastery durability and shield recharge evolutions, which synergize with the power.
    • The Tactical Cloak Duration and Bonus Power evolutions, allowing the Shadow more time to select a target while shielded from enemy sight.