Drops
| Item | Rate | ≈ Kills |
|---|---|---|
| Thief Bug Slime | 4.17% | 1 in 24 |
| Thief Bug Shell | 2.08% | 1 in 48 |
| Thief Bug Tooth | 2.08% | 1 in 48 |
| Butterfly Wing Powder | 0.83% | 1 in 120 |
| Empty Bottle | 0.83% | 1 in 120 |
| Blue Gemstone | 0.83% | 1 in 120 |
| Insect Mandible | 0.0463% | 1 in 2,160 |
| Zargon | 0.0309% | 1 in 3,240 |
| Insect Feeler | 0.0154% | 1 in 6,480 |
| Male Thief Bug Card | 0.0024% | 1 in 41,667 |
Combat profile
| Aggressive | Yes |
| Physical DEF | 8% |
| Magic DEF | 8% |
| Dodge | 3.5% |
| Crit resistance | 3.5% |
Lore
A mutated Thief Bug monster corrupted by the dark energy in the sewers. Its attack and agility are far greater than a normal Thief Bug. It is an enemy of Female Thief Bugs—another type of Mutant Thief Bug—and they dwell in different areas of the sewers. A friendly reminder from the Kingdom Defense Force: Mutant Thief Bugs have been running rampant recently. Adventurers, please be careful if you run into Mutant Thief Bugs.