Osseous
Osseous is a RuneScape 3 boss. The RuneScape Wiki's Bosses page lists it under “Rex Matriarchs”. It attacks with Necromancy, Melee and Ranged.
- Where
- Anachronia
- Attack styles
- Necromancy, Melee, Ranged
- Members only
- Yes
- Released
- 28 March 2024
Osseous notable drops
| Item | Drop rate |
|---|---|
| Occultist's ring | 2/3992/393 with tier 2 luck or higherPre-rolls |
| Jail cell key | 1/3991/393 with tier 2 luck or higherPre-rolls |
| Heart of the Berserker | 1/2251/222 with tier 2 luck or higherPre-rolls |
| Savage spear tip | 1/4501/444 with tier 2 luck or higherPre-rolls |
| Savage spear shaft | 1/4501/444 with tier 2 luck or higherPre-rolls |
| Savage spear cap | 1/4501/444 with tier 2 luck or higherPre-rolls |
| Savage plume | 1/4501/444 with tier 2 luck or higherPre-rolls |
| Skeka's hypnowand | Not in its drop table |
The notable rewards the RuneScape Wiki lists for Osseous, with the rates its drop tables print. Each rate is the one the Wiki prints, under the table it is in on the boss's Wiki page (normal or hard mode, solo or duo, and so on). "With luck" is the rate the Wiki's own footnote on that drop gives with that tier of luck active. A range (1/5,400–1/441) or any other second figure is explained on the boss's Wiki page. “Not in its drop table” is a reward the Wiki gives no single rate for here, such as a set of pieces.
Chance of a drop in any number of kills
Every kill is its own roll, so the chance is 1 − (1 − rate)kills: at the rate's own number of kills it is about 63%, not 100%. More in the drop calculator