Guardian Mounts can be enhanced from +0 up to +15. Most upgrade stages have a high success rate, while the final stage is much harder.
| Enhancement Step | Success Rate |
|---|---|
| +0 → +1 | 70% |
| +1 → +2 | 70% |
| +2 → +3 | 70% |
| +3 → +4 | 70% |
| +4 → +5 | 70% |
| +5 → +6 | 70% |
| +6 → +7 | 70% |
| +7 → +8 | 70% |
| +8 → +9 | 70% |
| +9 → +10 | 70% |
| +10 → +11 | 80% |
| +11 → +12 | 80% |
| +12 → +13 | 80% |
| +13 → +14 | 80% |
| +14 → +15 | 80% |
| Rule | Effect |
|---|---|
| Upgrade Failure | The Guardian Mount level decreases to 0 if fail at +10 or higher level |