One of the Mystic Skills in Hidden Mountain is called Bursting Nine. It is a type of offensive area-debuff skill which makes use of falling arrows to inflict Cripple onto the enemies. Here, in this guide, we have explained how to acquire the Bursting Nine & World to Sword Unlock skills, and its effects to make things easier for you.
How to Unlock Bursting Nine
Before having access to Hidden Mountain and its content, first finish Mountains Unveiled. Progress through the story until you are at the point of reaching Evershift Labyrinth Jianghu Legacy in the area. Completing Evershift Labyrinth will let you unlock the Bursting Nine Mystic Skill.
Bursting Nine Skills
Bursting Nine fires are projected forward using Bronze Arrows and then turned into a rain of projectiles. The skill can be upgraded using Foxtails, which can be found around the new area in Hidden Mountain. With upgrades, you can press the Mystic Skill twice to quickly fire two attacks.
The attack inflicts 240% Physical Attack damage + Physical damage + Other attribute damage and inflicts Cripple for 5 seconds.
This attack can be blocked, but not parried. Damage diminishes every time the same target is attacked. The first time damage dealt is 30% and the second time it is 10%. At Tier 4, the ability costs 30 Vitality and has a cooldown of 30 seconds.
Bursting Nine is ideal for both PvP and GBG situations, as it makes it impossible for its victims to jump. Later improvements enhance its ability to interfere with enemies and their movements. The skill can also interrupt certain mechanics used by the new world bosses.
Bursting Nine Breakthrough Bonuses
Each breakthrough tier provides an additional effect as the Mystic Skill is upgraded.
Tier 2
The duration of Cripple is increased by 2 seconds. It also raises the affected target’s Dodge cost by 40%.
Tier 3
After using Bursting Nine, pressing the skill again within a short period launches a second round of Arrow Rain. This follow-up attack costs 10 Vitality, deals 50% damage, and applies enhanced Cripple.
Tier 4
The Vitality requirement for the first Arrow Rain is reduced by 10.
Tier 5
If the second Arrow Rain hits an enemy who already has an enhanced Cripple, it can apply Disjointed. This reduces the target’s Endurance by 60.
The effect can only activate once for each enhanced Cripple, while the same target can only be affected by Disjointed once every 12 seconds.
Tier 6
Bursts from the skill deal 6% more damage, with the increase reflected in its damage coefficient.
Bursting Nine Upgrade Materials
The skill’s ranks and breakthrough tiers require different levels of Ebon Iron, along with Foxtail Weed for the tier promotions.
| Tier | Promotion Requirements | Rank Upgrade Cost |
| Tier 1 | None | Lv. 1 Ebon Iron ×2 for each rank (0–9) |
| Tier 2 | Foxtail Weed ×5, Lv. 1 Ebon Iron ×2 | Lv. 2 Ebon Iron ×4 for each rank (1–9) |
| Tier 3 | Foxtail Weed ×15, Lv. 2 Ebon Iron ×4 | Lv. 3 Ebon Iron ×10 for each rank (1–9) |
| Tier 4 | Foxtail Weed ×18, Lv. 3 Ebon Iron ×10 | Lv. 4 Ebon Iron ×20 for each rank (1–9) |
Mystic Arts can be advanced through tiers, where Tier 1 reaches Rank 9 before moving to Tier 2 Rank 0. Promotions through the tiers continue all the way through to Tier 6, giving additional bonus effects with each new rank.
How to Unlock World to Sword
World to Sword is associated with the Raven’s Testament Wandering Tale, so completing the Mirkvale campaign is not needed to unlock it.
Once Heaven’s Threshold becomes available, the skill can be used. Start by teleporting to the Sewing Null Boundary Stone that is in the southern side of Murkil.
From the Boundary Stone, head to the north until you arrive at the required location and jump down from the ledge to get to the cave.
Go inside the cave, talk to the NPC, and read the message written on the wall. Be sure that you have the Panacea Fan when you are about to use the Healing Marshall ability on the sword.
Then, pull out the sword and talk to the NPC again. You will have to give the sword to him in order to get access to World to Sword.
World to Sword Mystic Skill
The World to Sword skill has been designed for healers. It allows summoning a sword which attacks enemies every so often by using the excess of healing. The skill can be enhanced in such a way that its duration and the amount of strikes it causes increase as well as the healing and damage dealt by skill.
