Burdens
From LOTR-TCG Wiki
From the Comprehensive Rules 4.0:
When your Ring-bearer loses will against the power of The One Ring, you place a burden token on him. Glass beads (preferably black) make good burden tokens, but anything you won’t confuse with a wound will do.
There are many cards that add or remove burdens. Burdens are only placed on your Ring-bearer.
See also active, corrupted, resistance.