Once you’ve reached the endgame of Suicide Squad: Kill the Justice League, you’ll start earning Finite Crisis levels in addition to normal XP. Your Finite Crisis rank determines the loot that’s available to you and a few missions are locked behind Finite Crisis requirements, so it’s important to level up.
How to Increase Finite Crisis Levels in Suicide Squad
To raise your Finite Crisis rank in Suicide Squad: Kill the Justice League, you need to complete endgame Incursion missions that send you to fight Brainiac’s forces on Earth-2. Every Incursion you complete will reward you with Finite Crisis XP, and completing missions on higher Mastery levels will grant even more progress.
There are a handful of Incursion missions currently available in Suicide Squad: Kill the Justice League, but more will be added to the game in post-launch updates. Incursions permanently remain on the Metropolis map, marked with a purple icon with a yellow X.
They require an upfront payment of 1,000 Promethium in order to start, so you can’t farm them infinitely. You can earn Promethium by completing activities and missions throughout Metropolis on Earth-1. Just run around the city and help out Toyman, Penguin, Waller, and whoever else requires your assistance and you’ll build up your Promethium savings in no time. When you hover over a mission’s icon on the map, it’ll tell you how much Promethium you’ll get as a reward.
Best Way to Farm Finite Crisis Ranks
Once you have enough Promethium, you can venture to an Elseworld on an Incursion to level up your Finite Crisis rank. If you want to raise your Finite Crisis level as fast as possible, the best way is to repeatedly complete the “World’s Un-Fair” mission for Lex Luthor. This is the shortest of the available Incursions with just a 10-minute maximum timer, so you should be able to get in and out in just a few minutes.
Not only is this a great way to get a ton of Finite Crisis XP faster than normal, but it’s also a good way to unlock higher Mastery levels if you have the gear to take them on. As long as you select the highest possible Mastery level for the mission and manage to make it out alive, you’ll unlock the next Mastery level upon completion.
The only downside to repeating this mission is the featured loot. Shields and Grenades are the primary drops from this mission according to the map icon, so you’ll have to choose another Incursion if you want to farm for weapons or other gear. This mission doesn’t exclusively drop Shields and Grenades, though, so you can still get Infamy weapons and Notorious gear after each run.