How to defeat Brainiac at Mastery 10+ in Suicide Squad Kill the Justice League

Take Brainiac down... again.
How To Defeat Brainiac In Suicide Squad Kill The Justice League
Screenshot: PC Invasion

In the Suicide Squad: Kill the Justice League endgame, an activity allows you to take on Brainiac at Mastery levels. Here, Brainiac is insanely hard unless you know the best tips and tricks to defeat him.

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Suicide Squad KTJL: Best strategies to kill Brainiac at Mastery levels

Suicide Squad Kill The Justice League Mayhem Master 10+
Screenshot: PC Invasion

Here are a few pointers before we get into the three big tips and tricks. Brainiac will keep healing if enough enemies are on the field for him to leech. Use your Suicide Ultimate to slow down time and use grenades to destroy every enemy in the area.

When it’s time to deal damage to Flash Brainiac, Counter him once to fill your bar (which is directly under his health). With that bar filled, you can deal damage, so make sure it’s always filled. I recommend using Shotguns to deal quick, high damage. If you ever need ammo, counter Brainiac.

Related: Best Captain Boomerang build in Suicide Squad Kill the Justice League: Talents, weapons, and gear

Use a multiplayer squad to defeat Brainiac

Brainiac Bug In Suicide Squad Kill The Justice League
Screenshot: PC Invasion

Defeating Brainiac at Mastery levels is almost impossible solo. It will take an hour or two on your own barring you don’t just give up entirely. Especially if they’re low-level, the bots just don’t cut it for the Brainiac Mastery fight.

To make quick work of Brainiac, play with other online players. Matchmake with other online players or with your friends to finish Brainiac with ease. The reason this is effective is because online players are smarter and better than bots (usually) and their characters are likely to be max level with fully fleshed-out builds.

Use Poison Ivy’s plants to defeat Brainiac

The hardest part about the Brainiac fight is the beginning when he shields and heals before starting the Flash damage phase. This can render all of your work in the last damage phase useless.

To stop Brainiac from healing, you need to use Poison Ivy’s plants right when Brainiac appears and starts to leech the adds. Not only will this stop Brainiac from healing, but he’ll also take some extra damage.

Poison Ivy’s plants don’t appear right away, so before she shows up, you need to make use of the Suicide Ultimate and grenades to clear adds.

Use Gizmo’s cars to defeat Brainiac

Use Gizmo Car To Defeat Brainiac In Suicide Squad Kill The Justice League
Screenshot: PC Invasion

Halfway through the fight, Brainiac will stop shielding and healing, which gives you time to just focus on dealing damage. Eventually, Gizmo will drop four cars for you to use. These cars are an excellent way to deal high damage to Brainiac to wrap up the fight. Just make sure your Decoupler is charged by countering Brainiac or you won’t deal damage.

It’s worth noting that when I fought Brainiac at high Mastery levels, one of his Flash versions bugged out in the back left of the arena. I could continuously deal damage to this Brainiac Flash, which made the fight much easier. Keep your eyes peeled for that just like you need to do to get all the Riddler Trophies.

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Author
Noah Nelson
From his early days of blog-style music, movie, and game reviews to working as the Esports Writer at Coastline Community College, Noah Nelson now works fulltime as a Staff Writer for Attack of the Fanboy and PC Invasion. He has been helping gamers everywhere with Destiny 2 god rolls, Warzone 2 DMZ missions, and collectibles in any indie game for over a year and a half. His Bachelor's Degree in English Rhetoric and Composition with a minor in Journalism from CSULB has shaped him to be a strong writer and editor. His fondest gaming memory is playing Sly Cooper 2 after begging his mom (for hours) to play it before his birthday and he still cries myself to sleep remembering the time he accidentally saved over his 99% completion save file in Kingdom Hearts 2.