#1. New Stack Tower


[Stack]
- damage : 30 [10, 10]*
- cool-time : 1s
- stack-damage : 10 [1, 1]
- exponential base** : 1.2 [0, 0.1]

* base [class-up, power-up]
** the stack-damage is multiplied by stack-level*** to the power of  "1.2".
*** the stack-level increases at every merge of any towers


#2. Rebalanced Tower


[Combo]
- base damage: 25 → 30
- base combo damage: 10 → 15
- class-up combo damage: 2 → 1
- exponential**** base : 1.25 → 1.55

**** the combo-level increases at every merge of only combo towers