Which works best to describe character, item or dungeon properties: Affix or Trait?

I am working on an RPG portion of my game called “The Underground King“.

My item generator uses the same properties that also apply to characters, vehicles and racing levels (dungeons for short).

I am torn between using the term “Affix” and the term “Trait” to describe the procedurally generated properties, mainly because English is not my first language, and there may be a clear difference in usage between the two.

Examples of traits: Hearty: For items, it gives 5 more HP, for characters they have 5 more HP, for vehicles they have 5 more durability, for dungeons, enemies have 5 HP each. Indomitable: For items, characters and vehicles, it gives the player the ability to ressurect at 100% hp, once dead. For the dungeon, dead enemies remain invulnerable for a few seconds after being dead.

I am open to either opinions or arguments for any of them. Thanks!