Rustu
When it appears
As a tier-2 Nexomon, it only turns up in the grass after you beat Jin in Magma Grotto Town, in the main quest Tyrant Mulcimer, or from the start in Custom Mode with high-tier encounters allowed.
Capturing
Its favourite foods are Pink Pecana, Green cake and Baguette, Rust's, as every stage of a line shares the first one's. Feeding it one adds 15 to your capture chance, where other food adds 5. Catching a Nexomon explains how the whole chance adds up.
Evolution
Cosmic
Every wild one has a 1 in 4,000 chance to be cosmic at first, and 1 in 3,500 later in the story. What improves the odds is on the Nexomon page.
Normal 
Cosmic
Stats by level
Before cores. How stats grow is on the Nexomon page.
| 1 |  12 |  120 |  8 |  4 |  11 |
| 25 | 79 | 127 | 38 | 31 | 51 |
| 50 | 149 | 135 | 70 | 59 | 92 |
| 75 | 219 | 142 | 102 | 88 | 133 |
| 99 | 286 | 149 | 133 | 115 | 172 |
Damage taken
How hard a skill of each element hits it, going by its element. The full damage formula is on the Skills page.
Skill tree
 Rock Barrage | 3 |  Mineral | 50 | 5 |
 Drill | 6 | Mineral | 100 | 15 |
 Corrupted Mineral | 9 | Mineral | — | 15 |
 Rocknite | 15 | Mineral | 60 | 5 |
 Elemental Up | 19 |  Normal | — | 10 |
 Rocknite Burst | 23 | Mineral | 110 | 15 |
 Healing Stone | 27 | Mineral | — | 15 |
 Rock Wall | 32 | Mineral | — | 25 |
 Combo | 33 | Normal | 95 | 15 |
 Pummel | 40 | Normal | 80 | 15 |
 Blazing Mineral | 44 | Mineral | — | 10 |
 Sonic Scream | 46 | Normal | 85 | 15 |
 Meteor Strike | 49 | Mineral | 90 | 15 |
 Power Up | 56 | Normal | — | 10 |
 Seismic Move | 60 | Mineral | 70 | 10 |
 Resonating Rock | 64 | Mineral | — | 15 |
Encounter locations
| Grunda's Tomb Floor 1 Extra West Grunda's Chasm or Lateria | 15.7% | 11.2% | |
| Grunda's Tomb Floor 1 North Extra Grunda's Chasm or Lateria | 12.7% | 9.6% | |
| Grunda's Tomb Floor 2 Grunda's Chasm or Lateria | 14.1% | 10.4% | |
| Grunda's Tomb Floor 3 Lobby Grunda's Chasm or Lateria | 13.6% | 10.1% | |
| Magma Grotto Dead End The City of Ignitia | 22.6% | 22.6% | |
| Magma Grotto North 1 The City of Ignitia | 15.7% | 15.7% | |
| Magma Grotto North 2 The City of Ignitia | 15.7% | 15.7% | |
| Magma Grotto Slope The City of Ignitia | 15.7% | 15.7% | |
| Magma Grotto South 3 The City of Ignitia | 15.7% | 15.7% | |
| Magma Grotto South 4 The City of Ignitia | 20.3% | 15.7% | |
| Magma Grotto South 5 The City of Ignitia | 15.8% | 11.8% |
- Evolves into
- Evolves from
- Favourite foods
- Other
History
Changes to this nexomon across game updates.
- Other languages +拉斯图
- On the map
- +Updated
- Other languages +Расту
- On the map
Other languages: RustuРастуラストゥー루스투拉斯图