Every good superhero needs decent gear and in Marvel’s Avengers, there are a lot of items to choose from.
You can also upgrade Artifacts using these special resources, which goes towards increasing your overall power and giving you certain combat advantages.
Head to the Gear screen to change and boost your Artifacts, the same way you would regular items.
You’ll also receive resources at the end of missions and can pick up rarer resources by completing Hero-specific missions, from Hero Challenge Cards and Harm Rooms.