| Ol' Sawtooth (Normal mode) [] | 1 | 1/116.3 |
| Olivia the Chronicler (Normal mode) [] | 1 | 1/116.3 |
| Orikalka [] | 1 | 50/10,000 |
| Osseous [] | 1 | 50/10,000 |
| Oyu the Quietest (Normal mode) [] | 1 | 1/116.3 |
| Pthentraken [] | 1 | 50/10,000 |
| Raptor's chest of slaying [] | 3 | Always |
| Rathis [] | 1 | 50/10,000 |
| Renegade Menaphite soldier (Normal mode) [] | 1 | 1/232.6 |
| Ripper dinosaur [{'content': 'Dropped while on dinosaurs Slayer assignment.'}] | — | Unknown |
| Rorarius [] | 1 | 8/6,395 |
| Sarkhan the Serpentspeaker (Normal mode) [] | 1 | 1/116.3 |
| Scutarius [] | 1 | 27/6,427 |
| Sea crocodile (Normal mode) [] | 1 | 1/930.2 |
| Seiryu the Azure Serpent (Normal mode) [] | 1 | 1/116.3 |
| Smoulders, the Revenger [{'content': 'Multiply by 1.8 if holding a lucky charm.', 'name': 'charm'}] | 1–3 | 1/200 |
| Spiritual mage [] | 1 | 1/512 |
| The Ambassador (Normal mode (Duo)) [] | 2–6 | 30/1,000 |
| The Ambassador (Normal mode (Solo)) [] | 10–20 | 35/1,000 |
| The Ambassador (Normal mode (Trio)) [] | 1–3 | 15/1,000 |
| The Sanctum Guardian (Normal mode) [] | 1 | 1/116.3 |
| The Violet Lotus (Normal mode) [] | 1 | 1/116.3 |
 TzKal-Zuk (Seated (1))[] | 1–2 | Uncommon |
| Venomous dinosaur [{'content': 'Dropped while on dinosaurs Slayer assignment.'}] | — | Unknown |
| Waterfiend (Normal mode) [] | 1 | 1/930.2 |
| Wilderness slayer chest [] | 2 | 6/1,000 |
| Xiang the Water-shaper (Normal mode) [] | 1 | 1/116.3 |
| Yakamaru [{'content': 'This drop can only be rolled once per kill.'}] | 2–4 | 1/38.3 |
| Yukimura of Hanto (Normal mode) [] | 1 | 1/116.3 |