Fire Dancer Feat

You’ve danced among the flames so long and with such skill that now the flames dance along with you. You gain the following benefits:

Prerequisite: 4th level, Wildling

• Ability Score Increase. Increase your Strength, Dexterity, or Charisma ability score by 1, to a maximum of 20.
• Through The Flames. You have advantage on Dexterity saving throws where failing them would result in taking fire damage.
• You gain the Cinder Sweep special attack (below).

Cinder Sweep - Active Ability (Attack, Supernatural)

• When you take the Attack action on your turn, you can replace one of your attacks with moving up to 5 feet without provoking attacks of opportunity and then cause an explosion of fire around you. All creatures within 10 feet of you must make a Dexterity saving throw. On failure, a creature takes 2d6 fire damage and becomes ignited. Creatures that are ignited take 1d6 fire damage at the end of each of their turns until a creature within 5 feet of the ignited target spends their action to douse the flames. On a success, creatures take half as much damage and are not ignited. The initial fire damage increases by 1d6 when 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 191

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.