In the originalMass Effecttrilogy, a player’s chosen class dictates what powers and abilities Shepard has at their disposal. For instance, an Adept begins each game with a litany of biotic powers, such as Singularity and Warp.

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Mass Effect 3 Screenshot Of Liara’s Face

However, inMass Effect3, Shepard is not restricted to the abilities they have from the start, as they can add another one during the game. The Commander can get the extra bonus power by interacting with a bed in the Normandy’s Med Bay. Yet, before they can pick the best skills, they need to unlock them, and here is how to do it.

Updated June 21, 2025, by Ben Jessey:Mass Effect 3is a long game, so a lot of players might find that in the later stages, they’re getting tired of using the same abilities. That’s why the chance to select an additional skill is such a treat. But the decision of which to pick is oftendifficult, as there is no true best bonus power. Instead, there are a group of strong ones, and any of them can be considered the greatest. A few of them were left off of our list previously, so this article has been updated to add them in, giving players a few more options.

Mass Effect 3 Screenshot Kaidan In Armor

11Freeze The Opposition With Stasis

With the Stasis ability, Shepard is ableto freeze opponents in place.It’s a good option when there are a lot of enemies in an area, as it takes one or two of them out of commission for a while. Alternatively, the power can be used to keep a target out in the open. They’ll be ready for Shepard’s crew to deal some damage, possibly by using a biotic explosion.

How To Unlock it

Liara is one ofthe best romances in the series, but players don’t need to be in a relationship with her to get this ability. All they have to do isspeak with the Asari immediately after the Priority: Thessia quest.

10Protect And Lift With Barrier

Throughout the game, Shepard has to face all sorts of difficult opposition. Thus, the hero could benefit from a little bit more protection at times, and that’s what the Barrier provides. Not only does it make players harder to kill, but they candetonate the Barrier to lift up nearby enemies,leaving them vulnerable to attack.

It’s only possible to get this powerif Kaidan is alivein the player’s save. If the guy is still standing, Shepard can talk to him after he rejoins the Normandy after Priority: The Citadel II. Once the conversation is over, players will receive perhaps the best bonus power.

Mass Effect 3 Screenshot Of Garrus Celebrating

9Proximity Mine, A Surprisingly Long-Ranged Explosive

A Proximity Mine sounds like a pretty boring power compared to all of the unique biotic and tech abilities in the game. But what it lacks in flair, it makes up for in substance. Unlike most powers, there isn’t a limit to how many people can be hit by one, so it works a little like grenades — except players get anunlimited supply of mines. They also have great range as players can use a scope to place them at a distance, which is why it’s among the best bonus powers fora strong Infiltrator build.

The chance to unlock this power comes deep into the story. To do so, players first need tobeat the Priority: Thessia mission and then speak to Garrus.

javik angry mass effect

8Dark Channel Provides Continuous Biotic Damage

Those hit with Dark Channeltake consistent biotic damage, and if they die before the power’s duration is over, another enemy gets infected with it. However, the best part about the ability is its use in biotic explosions. Anyone suffering from the effects of Dark Channel is already primed for a power combo, so just hit them with a detonator ability to initiate their destruction. Therefore the power is most useful for those with biotic talents.

Getting Dark Channel requires one ofthe best DLCs in the series, From Ashes, which is also a part of theLegendary Edition.Then players have to wait until they complete the mission where Shepard visits a fake Cerberus Sanctuary (Priority: Horizon). Afterward, they cantalk to Javik to unlock the power.

Mass Effect 3 Screenshot Of Ashley With Rifle

7Inferno Grenade, A Fiery Combo Starter

This grenade is a nice utility power as pretty much any class can make use of it. As its name suggests, when thrown, the Inferno Grenadeunleashes an array of fire that covers a big area.Those caught in the flames can be hit with a detonator ability to cause a fire explosion, making the grenade even more devastating.

How To Unlock It

The only way to get this power is tokeep Ashley alive throughout the series.After Shepard welcomes the determined Spectre back aboard the Normandy at the end of Priority: The Citadel II, the grenades will become available.

6Flare, A Large Biotic Blast

As it’s named Flare, player would be forgiven for thinking this is a power that blinds people with bright lights, but that’s not the case. It’s actually a biotic projectile that Shepard can throw at enemies, whichexplodes on contact. The power causes a lot of damage, plus it can be used to set off biotic explosions to make it even more useful. Its only real downside is its long recharge time, but that shouldn’t be a problem for classes that aren’t weighed down by many weapons (which lowers recharge speed). In fact, the Flare is amongthe best choices for anyone with an Adept build.

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Getting ahold of the power is fairly easy as players only have tocomplete Omega: Aria T’Loak,which is DLC for the originalME3and part of the Legendary Edition.

5Fortification, Heavily Reinforce Armor

Some of the battles in the game are difficult to survive, which is why Fortification is helpful. The powerboosts Shepard’s armor,making them a lot more durable in firefights. Plus, the ability helps in close quarter fights, as it also increases melee damage.

Players can unlock this power from James when they’re back on the Normandy after the Mars mission and the trip to the Citadel.Talking to him when he’s in the Shuttle Bayleads to a sparring session. After the friendly fight, Fortification becomes available.

Mass Effect 3 Legendary Edition Screenshot Of Aria TLoak

4Reave Helps Shepard While Hurting Others

Reave inMass Effect 3drains adversaries' health while providing Shepard with increased damage protection. It’s one of the few powers that helps the Commander and hurts others at the same time. And it’s extremely useful for biotic explosions, as it can act as either the primer or detonator.

To get Reave, Kaidan has tosurvive Virmire and Priority: The Citadel II.Players must then speak to him directly after the attack on the Citadel when they’ve returned to the Normandy - he’ll be in the Starboard Observation Lounge.

Mass Effect 3 Screenshot Of James Vega

3Warp Ammo, A Versatile Type Of Bullet

There aresome great guns in the series, but they can be improved with some special ammo types. Warp ammo does plenty ofdamage to barriers, armor, and enemies who are lifted in the air with biotics.It’s a good, solid bonus power that’s useful for any class.

Liarais the character that provides the Warp ammo, but only if Shepardtalks to her after the significant Genophage mission on Tuchanka(Priority: Tuchanka). Players should be able to find the Shadow Broker in her quarters.

mass effect legendary edition Screenshot Of kaidan In Casual gear

2Defense Matrix Keeps Shields Intact

Shields are one of the main things keeping Shepard alive throughout the game. Once those go down, the hero becomes very vulnerable, especially on harder difficulties. Defense Matrix is a very helpful power because itrestores shields and gives the user extra protection.It’s a good choice of bonus power for most classes.

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Everyone’s favorite AI,EDI, is the one who Shepard needs to speak with to get the ability. So, if players want the Defense Matrix, they mustinitiate a conversation with her on the Normandy bridge after Priority: The Citadel II.

Mass Effect 3 Legendary Edition Screenshot Of Liara

EDI in Mass Effect 3