Améliorer son expertise est essentiel pour augmenter la puissance du Bastion. Améliorer cette Connaissance permet d'accélérer l'apprentissage et l'amélioration de Connaissances dans la Résidence des Chamans.
| Niveau | Ale | Bois brut | Acier | Plaques | Thoriars | Parchemins | Temporels | Conditions | Vitesse d'apprentissage au Bastion | Influence | |
| 1 | 400 | 335 | 670 | 670 | 1.5K | 100 | 2w 6d 12h 00m 00s | 21 | 31.5M | ||
| 2 | 545 | 455 | 910 | 910 | 2.05K | 110 | 3w 1d 12h 00m 00s | 45 | 32M | ||
| 3 | 755 | 630 | 1.3K | 1.3K | 2.8K | 120 | 4w 00h 00m 00s | 74 | 32.5M | ||
| 4 | 1.1K | 895 | 1.8K | 1.8K | 4K | 130 | 5w 00h 00m 00s | 1er, | >11 | 32.5M | | |
| 5 | 1.6K | 1.3K | 2.65K | 2.65K | 5.8K | 140 | 6w 1d 12h 00m 00s | 1er, | >61 | 33M | | |
| 6 | 2.35K | 1.95K | 3.9K | 3.9K | 8.6K | 150 | 6w 1d 00h 00m 00s | 2e, | >22 | 33M | | |
| 7 | 3.55K | 2.95K | 5.95K | 5.95K | 13.5K | 160 | 7w 5d 12h 00m 00s | 3e, | >05 | 33.5M | | |
| 8 | 5.5K | 4.6K | 9.25K | 9.25K | 20.5K | 170 | 10w 1d 12h 00m 00s | 4, | >08 | 34M | | |
| 9 | 8.75K | 7.3K | 15K | 15K | 32.5K | 180 | 13w 6d 00h 00m 00s | 5, | >31 | 34M | | |
| 10 | 14.5K | 12K | 24K | 24K | 53K | 190 | 19w 3d 00h 00m 00s | 7 | 34.5M | ||
| 39.05K | 32.42K | 65.43K | 65.43K | 144.25K | 1.45K | 78w 5d 12h 00m 00s> 1 Année(s) | 74 | 61 | 330.5M |
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