- Fixed casting time changed: 1.5s -> 0.5s
- Variable casting time changed: 1.5s -> 1s
- Global delay changed: 1.5s -> 0.5s
- 1s cooldown added
- Self damage is removed

From massive skills rebalance (1st/2nd/transclass) (2018.10.31)

- Damage formula changed
  - Old: (100 + 30 x SkillLevel)% ATK
         Shield weight gives extra flat damage
  - Now: (80 x SkillLevel + Shield Weight + Shield Upgrade x 4)% ATK

From massive skills rebalance (1st/2nd/transclass) (2018.10.31)

- Additionally gives +10% of Equipment ASPD

From massive skills rebalance (1st/2nd/transclass) (2018.10.31)

- Chance of breaking target weapon increased
  - Old: SkillLevel %
  - New: (3 x SkillLevel)%
- It now uses basic/default meelee damage calculation (instead of
  special formula)
- Damage formula changed:
  - Old: [100% + (Skill Level x 20)]% (ATK + MATK)
  - New: [(Skill Level x 60) + (Potion_Research_Lv x 10)]% ATK

From massive skills rebalance (1st/2nd/transclass) (2018.10.31)

- Chance of breaking target armor increased
  - Old: 3/7/10/12/13%
  - New: 5/15/25/35/45%
- It now uses basic/default ranged physical damage calculation (instead
  of special formula)
- Damage formula changed:
  - Old: [200% + (Skill Level x 80)]% (ATK + MATK)
  - New: [(Skill Level x 200) + (Potion_Research_Lv x 100)]% ATK

From massive skills rebalance (1st/2nd/transclass) (2018.10.31)

For Renewal Acid Terror damage is applied in a bundle of 5 hits isntead
of a single damage

- SP cost reduced: 20 -> 15
- Damage increased
  - Old: [100 + (Skill Level x 40)]%
  - New: [50 + (Skill Level x 150)]%
- Damage debuff changed
  - Old: 20% more damage for 5 seconds or 7 hits
  - New: 30% more damage (15% on boss monsters) for 10 seconds

From massive skills rebalance (1st/2nd/transclass) (2018.10.31)

before this commit, only part of the skillratio value was being halved
when using bows, because skillratio by default is 100.

the correct behavior for bows in backstab is to halve the entire
skillratio value (including the initial 100%)

- Skill mechanics changed
  - No longer needs to be behind the target to use skill
  - No longer ignores accuracy check
  - No longer usable from Hiding state
  - Now increases skill Hit by 4 per skill level
  - Number of hits changed:
    - Old: 1 hit
    - New: 2 hits with Dagger, 1 hit with other weapons
- SP cost reduced: 16 -> 12
- Cooldown added: 0.5s
- Number of hits changed

From massive skills rebalance (1st/2nd/transclass) (2018.10.31)

- Also increases Attack Speed by 1% per Skill Level

From massive skills rebalance (1st/2nd/transclass) (2018.10.31)