Meltdown Skill Improvement v1.0.0

Hello, I want to share some of my custom skill improvements. Whitesmiths are not popular class on most Pre-renewal servers especially in High Rate servers where Glistening Coat is abundant, and also mainly because it does not contribute that much on GvGs outside their party-wide buffs, has mediocre damage scaling and low survivability making this class hard to use. Their main offensive skills are only Mammonite and Cart Termination which are both close-ranged skills. Their breaking capabilities are also completely blocked by Alchemists' Chemical Protection skills making Meltdown completely useless.

With this modification, Whitesmiths has a chance to break enemies' equipment even through Alchemists' Chemical Protection (and unbreakable if enabled) by stacking the new debuff called "Melt" and even increase the overall damage of the caster and their allies. In order to not make it too overpowered, the equipment break bypass will only work if the max stacks of Melt on a target has been reached so Whitesmiths cannot instantly break the equipment of targets who has Chemical Protection on. This can also make Whitesmith and Stalker combo extremely good, Stalker holding the target with Close Confine while the Whitesmith is spamming Cart Termination. However, multiple Whitesmiths can accelerate the stacks to max so keep the max_melt_stacks high.

How it works:

- Melt debuff can only be applied and refreshed through Cart Termination and increases the stack count on the target every hit. Must have Meltdown buff on.
- Melt debuff also increases Neutral damage received by the target based on the number of stacks so it also empowers you and your allies as long as its a Neutral elemental attacks. Anyone with Meltdown buff will deal 1% more Neutral damage per stack while others without a Meltdown buff will only deal 0.1% more Neutral damage per stack.
- The equipment break bypass will only work if the target has max stacks of Melt.
- The number of stacks will reset if the Melt debuff expires.

Configs available:

- max_melt_stacks: The required stacks for bypass protection to take effect. Default to "100".
- melt_bypass_unbreakable: Makes it so unbreakable equipment can also be broken through Melt. Default to "no".
- breakable_helm: Can break Upper Headgear through Melt and bBreakArmorRate item bonus. Default to "no".
- breakable_shield: Can break Shield through Melt and bBreakArmorRate item bonus. Default to "no".
- melt_effect: The effect ID of the on-hit effect when the target has max stacks. Default to "170". (EF_CARTREVOLUTION)

Additional configs in skill_db.yml:

- Duration2 of WS_MELTDOWN: This is the duration of the Melt debuff. Default to 5000 (5 seconds).

Bonus modification:

- Cart Termination and Throw Tomahawk can now trigger equipment breaks from Meltdown.

Highly recommended in High Rate servers.
Git hash: 7f08087 (https://github.com/rathena/rathena/commit/7f080871c8b3bbe7a79027194633201c63422ee1)