If you don't play old mobile ignore this tip

List of all possible tributing rewards with no bs:

* 10 amber (uncommon)

* Quality riot helmet/chestpiece/leggings/boots/gauntlets bp

* Quality sword bp

* Quality compound bow item

* Quality riot shield item

* 25 potent dust items

* Revival platform item

* Rockwell recipes: nir---a tonic (torn) item (very rare)

* Regular Eerie pistol with 1200 durability and 65 damage (If it's your first time tributing this artifact)

Also gives 3 rewards at a time

If you don't know what "quality" means, it means it can spawn as primitive/ramshackle/apprentice/journeyman/mastercraft/ascendant.