| Black Knight | 2 | 2/128 |
 Black Knight Titan | 2 | 1/128 |
 Branda the Fire Queen | 150–300 | 2/55, 2 rolls |
 Brassican Mage | 5–24 | 5/50 |
 Brine rat | 7 | 18/128 |
 Bronze dragon (Standard) | 25 | 1/128 |
| Bronze dragon (Standard) | 45 | 1/8,192 |
 Brutal black dragon | 75 | 7/128 |
| Brutal black dragon | 45 | 1/4,096 |
 Brutal blue dragon (Catacombs of Kourend) | 11 | 8/128 |
| Brutal blue dragon (Catacombs of Kourend) | 45 | 1/5,461.33 |
 Brutal green dragon | 45 | 1/2,730.67 |
 Brutal red dragon | 25 | 8/128 |
| Brutal red dragon | 45 | 1/4,096 |
| Bryophyta (Free-to-play) | 3 | 1/128 |
| Bryophyta (Members) | 3 | 1/128 |
 Bull shark | 20–30 | 5/100 |
| Cache of runes | 500–1,000 | 6/30 |
| Cache of runes | 1,000–1,500 | 3/30 |
| Cache of runes | 3,000 | 1/30 |
 Callisto | 700 | 7/126 |
 Calvar'ion (Normal) | 120 | 7/128 |
 Cave kraken (Cave kraken) | 30 | 16/200 |
 Cerberus | 100 | 3/130 |
| Cerberus | 45 | 1/2,773.33 |
 Chaos dwarf | 3 | 1/128 |
 Chaos Elemental | 45 | 1/1,024 |
 Chaos Fanatic | 45 | 1/2,048 |
| Chest (Barrows) | 70–83 | 125/1,012, 7 rolls |
| Chest (Bryophyta's lair) (Free-to-play) | 100 | 6/118 |
| Chest (Bryophyta's lair) (Members) | 100 | 5/118 |
| Chest (Dorgesh-Kaan Average) (Oldak's chests) | 2–4 | 1/20 |
| Chest (Isle of Souls Dungeon) | 1–2 | 20/200 |
| Chest (Obor's lair) | 40–79 | 10/118 |
| Chest (Rogues' Castle, inside) | 3–5 | 2/128 |
| Chest (Rogues' Castle) (Hard Wilderness Diary) | 62 | 1/66 |
| Chest (Rogues' Castle) (Medium Wilderness Diary) | 50 | 1/66 |
| Chest (Tombs of Amascut) | 57–2,564 | 1/27, 3 rolls |
| Chewed bones | 8–15 | 18/128 |
 Chilled jelly | 15 | 3/128 |
| Coffin (Hallowed Sepulchre) (Mid) | 60–100 | 1/10 |
 Colossal Hydra | 30–60 | 9/128, 3 rolls |
 Commander Zilyana | 40–45 | 1/1,016 |
 Corporeal Beast | 300 | 22/512 |
 Crazy archaeologist | 45 | 1/2,048 |
| Crystal chest | 10 | 12/128 |
 Cyclops | 2 | 1/128 |
| Cyclops (Warriors' Guild Basement) | 45 | 1/3,200 |