| Cave horror [] | 3–5 | 1/204,800, 3 rolls |
| Cave slime [] | 3–5 | 1/4,194,304 |
| Celestial dragon (Dragonkin Laboratory) (Normal mode) [] | 3–5 | 1/153,600 |
| Champion of Infernus [] | 3–5 | 1/3,250,585.6 |
| Chaos druid [] | 3–5 | 1/16,777,216 |
| Chaos druid warrior [] | 3–5 | 1/16,777,216 |
| Chaos dwarf [] | 3–5 | 1/3,355,443.2 |
| Chaos dwarf (Chaos Dwarf Battlefield) [] | 3–5 | 1/3,355,443.2 |
| Chaos dwarf [] | 3–5 | 1/3,303,014.4 |
| Chaos dwarf hand cannoneer [] | 3–5 | 1/3,460,300.8 |
| Chaos dwogre [] | 3–5 | 1/3,879,731.2 |
| Chaos Elemental (Members) [] | 3–5 | 1/101,165.07, 2 rolls |
| Chaos Giant [] | 3–5 | 1/204,800 |
| Chaos witch apprentice (Normal mode) [] | 3–5 | 1/153,600 |
| Chaos witch channeler (Level 143 (Normal mode)) [] | 3–5 | 1/153,600 |
| Chaos witch lifeweaver (Normal mode) [] | 3–5 | 1/153,600 |
| Chaos witch magus (Normal mode) [] | 3–5 | 1/153,600 |
| Chaos witch mender (Normal mode) [] | 3–5 | 1/153,600 |
| Chaos witch (Normal mode) [] | 3–5 | 1/153,600 |
| Cloaked zealot (Normal mode) [] | 3–5 | 1/153,600 |
| Cloaked zealot (Normal mode) [] | 3–5 | 1/153,600 |
| Cockatrice [] | 3–5 | 1/8,388,608 |
| Cockroach drone [] | 3–5 | 1/2,796,202.67 |
| Cockroach soldier [] | 3–5 | 1/2,396,745.14 |
| Cockroach worker [] | 3–5 | 1/3,355,443.2 |
| Commander Zilyana (Hard mode) [] | 1 | 2/128 |
| Commander Zilyana (Hard mode) [] | 3–5 | 1/102,400 |
| Commander Zilyana (Normal mode) [] | 1 | 1/128 |
| Commander Zilyana (Normal mode) [] | 3–5 | 1/101,165.07 |
| Cooper (Normal mode) [] | 3–5 | 1/153,600 |
| Corporeal Beast [] | 3–5 | 1/6,710,886.4, 10 rolls |
| Corrupted dust devil [] | 3–5 | 1/153,600 |
| Corrupted kalphite guardian [] | 3–5 | 1/153,600 |
| Corrupted kalphite marauder [] | 3–5 | 1/153,600 |
| Corrupted lizard [] | 3–5 | 1/153,600 |
| Corrupted scarab [] | 3–5 | 1/153,600 |
| Corrupted scorpion [] | 3–5 | 1/153,600 |
| Corrupted worker [] | 3–5 | 1/153,600 |
| Crassian Leviathan (Normal mode) [] | 3–5 | 1/153,600 |
| Crassian scout (Normal mode) [] | 3–5 | 1/153,600 |
| Crassian scuttler (Normal mode) [] | 3–5 | 1/153,600 |
| Crassian warrior (Normal mode) [] | 3–5 | 1/153,600 |
| Crawling hand [] | 3–5 | 1/8,388,608 |
| Crocodile akh [] | 3–5 | 1/153,600 |
 Crystal impling[] | 1 | 10/500 |
| Crystal impling jar [] | 1 | 10/500 |
| Crystal Shapeshifter (Magic) [] | 3–5 | 1/153,600 |
| Cyclops [] | 3–5 | 1/6,553,600 |