Sun Domain

Those who worship the gods of the Sun are granted the benefits of both benevolence and destruction. Often their fire magic is imbued with a radiant glow that not even the strongest of fiends can withstand. Clerics of this domain tend to worship gods such as Apollo, Horus, or Lathandar. 

Subclass created by Cobbweb#2912 on the Taking 20 Discord server.

Bonus Proficiency

When you choose this domain at 1st level, you gain proficiency with martial weapons.

Fuel the Fire

Also starting at 1st level, your magic is infused with the Sun's energy. Whenever you use a spell to deal Radiant or Fire damage, you can add 3 to one roll of the damage dice. Additionally, you learn the Fire Bolt cantrip, which does not count towards your spells known.

Channel Divinity: Sun God's Wrath

Starting at 2nd level, you can use your Channel Divinity to invoke the wrath of the Sun.

As a bonus action, you can cause any spell you cast that deals Radiant or Fire damage to deal both damage types (Radiant Fire damage) for one minute. If a creature is resistant to only one of the damage types, the spell ignores that resistance. If a creature is vulnerable to only one of the damage types, the creature is considered vulnerable to the spell's damage. If a creature is resistant to one of the damage types and vulnerable to the other, both the resistance and the vulnerability are ignored.

Sun's Comfort

Beginning at 6th level, you can allow others to feel the warm embrace of the Sun. Whenever you cast a spell that deals Fire or Radiant damage and targets two or more creatures of your choice, you can target an additional creature. Additionally, whenever you cast a healing spell that targets two or more creatures of your choice, you can heal an additional creature. 

Strike of the Sun

At 8th level, you gain the ability to infuse weapons with the Sun's energy. Once on each of your turns when you hit a creature with a weapon attack, you can cause the attack to deal an extra 1d8 Radiant Fire damage to the target. When you reach 14th level, the extra damage increases to 2d8.

Sun God's Fury

Starting at 17th level, the wrath of the Sun burns all that go against it. While concentrating on Sun God's Wrath, the bonus damage damage from Strike of the Sun increases to 3d8, and creatures that are vulnerable to both Radiant and Fire damage take four times the normal damage when they take Radiant Fire damage, instead of two times the damage with normal vulnerability. Additionally, while using this feature you cannot roll less than a three when rolling damage involving Radiant or Fire damage.