In the area that you start the game, called Udûn Foothills, you have Artifact 1/42 and Ithildin 1/32 to collect. Besides collectibles you earn Mirian by completing side missions, challenges and bonus objectives. Mirian is the currency to upgrade your weapons and increase your attributes. You have two kinds of collectibles in this game, Artifacts and Ithildin, worth 50 mirian each. You can always look in your map to finding these collectibles by pressing and using to zoom. Like I said earlier all collectibles are marked on your map, once you unlock the Forge Towers, so you can collect now or later, it’s up to you, but I recommend collecting now, for reaching better upgrades early. This information is very useful for your planning on how you can attack a captain, focusing on their weakness and knowing your strength.
Randomly you will encounter some green spots in your map, related to Uruks that you can interrogate to grab intel about captains.
