Fire Domain

Since the very dawn of civilization, those who commanded fire commanded other. A partnership with the most destructive and most useful element was, and always has been, the key to survival and success.

Thus is has been since the Beginning, and so shall it be after the End. Clerics of Fire seek not to control the element, but to nurture it, kindling their own flames – for ends known only to themselves.

Wrath of the Inferno

1st level, you can blazingly rebuke attackers. When a creature within 5 feet of you that you can makes an attack against you or another creature within 5 feet of you, you can use your reaction to cause the creature to make a Dexterity saving throw using your spell save DC. The creature takes 2d8 fire damage on a failed saving throw, and half as much damage on a successful one. You can use this feature a number of times equal to your Wisdom modifier (a minimum of1). You regain all expended uses when you finish a long rest. This damage increases to 3d8 at level 6, 4d8 at level 8 and 7d8 at level 17.

Fire and Flames

Channel Divinity

Starting at 2nd level, you can use your Channel Divinity to wield the power of the blaze with unchecked ferocity. When you roll fire or radiant damage, you can use your Channel Divinity to deal maximum damage, instead of rolling.

Starting at 2nd level you gain resistance to fire damage.

Purge in Holy Hell Fire

 At 6th level you can call down a red lightning strike to pin down foes, this Flaming Strike Smite requires an action and forces a dexterity saving throw with a DC equal to your own it has a range of 120 feet and is a 5 feet cylinder you can use this a number of times equal to your Wisdom modifier (Minimum of 1). This Smite deals 5d10 fire damage that cannot be resisted, this damage increases to 9d10 at level 8 to 15d10 at level 17.

 Also at 6th level, you can change any spells damage type to fire or radiant damage. 

Also at 6th level you gain resistances to radiant damage.

Red Sun

At 8th level you can take unresisted fire damage from one of your spells to cast it for free, the spell must only be able target one person and if it rolls higher then your current hp you drop to one, you can do this a number of times equal to your wisdom modifier per day, however anyone using counter spell can cast it for free and stop this from happening.

Flame of Hope

 At 17 level, you are in tune with the aspect of flame itself, as an action you can transform yourself into a aspect of flame, this form can take anything you wish, however it must be the same size as you, this form lasts for a number of hours equal to your Wisdom Modifier, you gain the following benefits.

Red Sun fire damage can now be resisted.

All of your fire damage spells now deal an equal amount of radiant damage. 

You leave a trail of flames wherever you go, any creature that starts or ends it's turn inside of these flames takes 8 fire damage, this damage can be resisted and the fire is treated as difficult terrain, the flames will only appear when you walk across the ground.

Your fire spells ignore immunity to fire damage and treats it as resistance, resistance as normal damage and no resistance as vulnerable.