Like we point out in the Shadow of War loot boxes breakdown, you can use Mirian to buy Silver chests, and War chests.
Those types of loot boxes grant you anything from gear to uruks – but crucially, they don’t include Legendary uruks.
This is not news in and of itself, but because Middle-earth: Shadow of War has become the poster child this week for having game-altering loot boxes and microtransactions, interest is higher than usual.
The PC version of Middle-earth: Shadow of War, like so many other games on the platform, can easily be manipulated with the help of scripts.