Outlaw's Spoils Chests are a type of Treasure Chest in Paladins. This kind of chest can only be purchased with Crystals, each one costing 300 . The chest contains items previously available in old battle passes or other event chests.
This chest was first released on February 19th, 2020.
If you see these skins coming for you, you should probably just run away; these aren't people you want to mess with.