Lab/Enemy Balance Mastery
From The Tower - Idle Tower Defense Wiki and Guides
< Lab
Lab Card Research Unlocks after activating its mastery. Increases 
Enemy Balance's Card Mastery chance for double elite spawn to occur. Has 9 levels.
| Level | Value | Time | Gems | Coins | Total Time | Total Gems | Total Coins |
|---|---|---|---|---|---|---|---|
| 1 | 12.00 | 20 days, 20h, 0m, 0s | 2.53K | 1.10q | 20 days, 20h, 0m, 0s | 2.53K | 1.10q |
| 2 | 18.00 | 31 days, 6h, 0m, 0s | 3.64K | 1.30q | 52 days, 2h, 0m, 0s | 6.18K | 2.40q |
| 3 | 24.00 | 41 days, 16h, 0m, 0s | 4.42K | 2.00q | 93 days, 18h, 0m, 0s | 10.59K | 4.40q |
| 4 | 30.00 | 52 days, 2h, 0m, 0s | 5.19K | 3.40q | 145 days, 20h, 0m, 0s | 15.78K | 7.80q |
| 5 | 36.00 | 62 days, 12h, 0m, 0s | 5.96K | 5.60q | 208 days, 8h, 0m, 0s | 21.74K | 13.40q |
| 6 | 42.00 | 72 days, 22h, 0m, 0s | 6.73K | 7.70q | 281 days, 6h, 0m, 0s | 28.48K | 21.10q |
| 7 | 48.00 | 83 days, 8h, 0m, 0s | 7.51K | 9.10q | 364 days, 14h, 0m, 0s | 35.98K | 30.20q |
| 8 | 54.00 | 93 days, 18h, 0m, 0s | 8.24K | 9.80q | 1 years, 93 days, 8h, 0m, 0s | 44.22K | 40.00q |
| 9 | 60.00 | 104 days, 4h, 0m, 0s | 8.89K | 10.00q | 1 years, 197 days, 12h, 0m, 0s | 53.11K | 50.00q |