Choosing the right additional ability for Commander Shepard in Mass Effect 2 drastically alters your combat efficiency, especially on higher difficulties like Insanity. These specific abilities are unlocked after completing the loyalty missions of your diverse crew members. Selecting an ideal power allows you to shore up your character class weaknesses or double down on your existing tactical strengths.
Top Tier Offensive Abilities
Reave stands out as arguably the most versatile bonus ability in the entire game due to its unique mechanics. It drains health from organic targets while dealing heavy damage to armor and biotic barriers instantly. This makes it an incredibly powerful choice for classes like the Vanguard or Sentinel that need to strip defenses quickly from a distance.
Another excellent offensive alternative is Warp Ammo, which provides a massive passive damage boost against targets affected by biotic powers. It is especially useful because it requires no active cooldown, allowing you to use your main class skills continuously. This ammo type remains highly effective throughout the campaign against the ubiquitous collectors and blood pack mercenary factions.
Essential Defensive Options
For players struggling to stay alive during intense firefights, Geth Shield Boost offers an exceptional layer of emergency protection. Activating this tech skill instantly restores your standard shields and can even grant a passive weapon damage bonus when fully upgraded. It provides a reliable safety net when moving between pieces of cover under heavy heavy fire.
Barrier acts similarly but benefits directly from biotic upgrade modules instead of tech research projects. Choosing between these defensive skills usually depends on which upgrade path you have prioritized aboard the Normandy. Incorporating one of these shields can completely change your survivability rate during the grueling suicide mission.
Crowd Control and Utility
Domination allows you to turn organic enemies into temporary allies, completely shifting the battlefield focus away from your squad. This power breaks enemy formations and forces aggressive combatants to target their own squadmates instead of Shepard. It offers incredible utility when dealing with heavily armored Krogan rushers or fast-moving Varren packs.
Flashbang Grenade, unlocked via Kasumi, provides an underrated method for disabling enemy spellcasters and weapon systems entirely. It can overheat enemy firearms and completely shut down dangerous biotic attacks from boss-level combatants. Utilizing these niche utility skills effectively requires a deeper understanding of enemy wave compositions on each map layout.
