Lightning Leaper Feat

You master the art of moving like lightning... literally. You gain the following benefits:

Prerequisite: 4th level, Wildling

• Ability Score Increase. Increase your Strength, Dexterity, or Intelligence ability score by 1, to a maximum of 20.
• Lightning Dodge. When you succeed a dexterity saving throw, you can teleport up to 5 feet.
• You gain the Lightning Leap special attack (below).

Lightning Leap - Active Ability (Attack, Supernatural)

• When you take the Attack action on your turn, you can replace one attack by turning into lightning, leaping (as lightning) to a creature or empty space within 10 feet of you. If you target a creature, you can target a chain of creatures within 10 feet of the previous target, targeting a number of creatures equal to your proficiency bonus. Each creature you target makes a Dexterity saving, taking 2d6 lightning damage on a failed save, or half as much on a successful save. You then teleport to an empty spot of your choice adjacent to the last target of the chain. The damage increases by 1d6 and the range (initial and jump distance) increases by 5 feet whenever your proficiency bonus increases.
• Once you use this feature, you cannot use it again until you complete a short or long rest.

Source: KCLL, page 192

Mystic Path Feat Save DC:

• Any time a mystic path feat requires an ability score modifier for spell attacks or saving throws, use Constitution as the modifier. The DC is calculated as 8 + your Constitution modifier + your proficiency bonus.
• If your class grants you a spellcasting feature, you can use that ability modifier for calculating spell attack rolls and the DC instead of Constitution.