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Improves Heroes level cap, allow to train Heroes. Improve to increase Heroes experience aqusition rate, also improving the National Treasure increases aqusition rate.

Training Upgrade Cost[]

Building Level Upgrade Cost
94 Gold x 419,464
Eternite x 393
95
104 Gold x 787,392
Eternite x 543
105
106 Gold x 893,079
Eternite x 570
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