[Skill] Skill Promotion - Skill Soul Promotion

Promote a skill and experience a different type of skill!

Skill Promotion can be activated by using the Soul Promotion Stone acquired from the Soul Training content and the same item can be used to promote a skill's soul.
Skill Soul Promotion can be executed in the [Skills] menu in the bottom right side of the screen and by selecting a valid skill.

Skills that can go through Skill Promotion are as follows:
- Dark Knight: Combo Hit, Swell Life, Whirlwind Slash, Berserker
- Dark Wizard: Death Poison, Soul Barrier, Poison Swarm, Grim Reaper's Eye
- Elf: Soldier, DEF Boost, Blessing of Wind, Tebilas