| Camel Warrior [] | 180–220 | 1/128,000 |
| Catablepon [] | 180–220 | 1/8,273,920 |
| Cave bug [] | 180–220 | 1/4,194,304 |
| Cave crawler [] | 180–220 | 1/20,971,520 |
| Cave crawler [] | 180–220 | 1/6,990,506.67 |
| Cave horror [] | 180–220 | 1/256,000, 3 rolls |
| Cave slime [] | 180–220 | 1/5,242,880 |
| Celestial dragon (Dragonkin Laboratory) (Normal mode) [] | 180–220 | 1/192,000 |
| Champion of Infernus [] | 180–220 | 1/4,063,232 |
| Chaos druid [] | 180–220 | 1/20,971,520 |
| Chaos druid warrior [] | 180–220 | 1/20,971,520 |
| Chaos dwarf [] | 180–220 | 1/4,194,304 |
| Chaos dwarf (Chaos Dwarf Battlefield) [] | 180–220 | 1/4,194,304 |
| Chaos dwarf [] | 180–220 | 1/4,128,768 |
| Chaos dwarf hand cannoneer [] | 180–220 | 1/4,325,376 |
| Chaos dwogre [] | 180–220 | 1/4,849,664 |
| Chaos Elemental (Members) [] | 180–220 | 1/126,456.34, 2 rolls |
| Chaos Giant [] | 180–220 | 1/256,000 |
| Chaos witch apprentice (Normal mode) [] | 180–220 | 1/192,000 |
| Chaos witch channeler (Level 143 (Normal mode)) [] | 180–220 | 1/192,000 |
| Chaos witch lifeweaver (Normal mode) [] | 180–220 | 1/192,000 |
| Chaos witch magus (Normal mode) [] | 180–220 | 1/192,000 |
| Chaos witch mender (Normal mode) [] | 180–220 | 1/192,000 |
| Chaos witch (Normal mode) [] | 180–220 | 1/192,000 |
| Cloaked zealot (Normal mode) [] | 180–220 | 1/192,000 |
| Cloaked zealot (Normal mode) [] | 180–220 | 1/192,000 |
| Cockatrice [] | 180–220 | 1/10,485,760 |
| Cockroach drone [] | 180–220 | 1/3,495,253.33 |
| Cockroach soldier [] | 180–220 | 1/2,995,931.43 |
| Cockroach worker [{'content': 'Replaced by a greater chance to roll a black full helm in free-to-play.'}] | 1 | 1/128 |
| Cockroach worker [] | 180–220 | 1/4,194,304 |
| Commander Zilyana (Hard mode) [] | 180–220 | 1/128,000 |
| Commander Zilyana (Normal mode) [] | 2 | 8/128 |
| Commander Zilyana (Normal mode) [] | 180–220 | 1/126,456.34 |
| Cooper (Normal mode) [] | 180–220 | 1/192,000 |
| Corporeal Beast [] | 180–220 | 1/8,388,608, 10 rolls |
| Corrupted dust devil [] | 180–220 | 1/192,000 |
| Corrupted kalphite guardian [] | 180–220 | 1/192,000 |
| Corrupted kalphite marauder [] | 180–220 | 1/192,000 |
| Corrupted lizard [] | 180–220 | 1/192,000 |
| Corrupted scarab [] | 180–220 | 1/192,000 |
| Corrupted scorpion [] | 180–220 | 1/192,000 |
| Corrupted worker [] | 180–220 | 1/192,000 |
| Crassian Leviathan (Normal mode) [] | 180–220 | 1/192,000 |
| Crassian scout (Normal mode) [] | 180–220 | 1/192,000 |
| Crassian scuttler (Normal mode) [] | 180–220 | 1/192,000 |
| Crassian warrior (Normal mode) [] | 180–220 | 1/192,000 |
| Crawling hand [] | 180–220 | 1/10,485,760 |