This article is outdated as of version update 0.9.4. Please revise the article to reflect updated changes.
Once The Master has been encountered, you can pay him gold to permanently upgrade your heroes' stats. You can upgrade the Attack, Special, Armor and Speed of each hero by up to 5 points. Each time you upgrade a stat, the cost of further upgrades for any stat increases.
| Upgrade Number | Cost |
|---|---|
| 1 | 100 |
| 2 | 200 |
| 3 | 300 |
| 4 | 400 |
| 5 | 500 |
| 6 | 700 |
| 7 | 900 |
| 8 | 1100 |
| 9 | 1300 |
| 10 | 1500 |
| 11 | 1800 |
| 12 | 2100 |
| 13 | 2400 |
| 14 | 2700 |
| 15 | 3000 |
| 16 | 3400 |
| 17 | 3800 |
| 18 | 4200 |
| 19 | 4600 |
| 20 | 5000 |