Ecological Rank sets your Keepsake cap, your Buddy cap and the star level of monsters in the field. It rises with Adventurer Rank, plus Proof of Mastery and Training Ground requirements.
| Rank | Adv. Rank | Keepsake | Buddy | Monster stars |
|---|---|---|---|---|
| 1 | 1 | 30 | 20 | ★1 |
| 2 | 15 | 30 | 30 | ★2 |
| 3 | 20 | 40 | 40 | ★4 |
| 4 | 25 | 50 | 50 | ★6 |
| 5 | 30 | 60 | 60 | ★8 |
| 6 | 35 | 70 | 60 | ★10 |
| 7 | 40 | 70 | 70 | ★11 |
| 8 | 45 | 80 | 70 | ★12 |
| 9 | 50 | 80 | 80 | ★13 |
| 10 | 55 | 80 | 80 | ★16 |