D&D Avengers: Thor Odinson

Do you hear the rumble? Do you hear the shake? The quake of the oncoming storm?

That's right, if you couldn't tell from the title, today we'll be making the D&D version of Marvel's Thor! Now, there is going to be some contention here between original Thor story of man imbued with awesome power, and Marvel Universe Thor who is super strong already and just gets like a kick-ass hammer. The first is very obviously a Tempest Cleric while the later is either a Paladin with a new Oath or a Fighter with an artifact. Because this is homebrew day I'm going to make an Oath of Storm Paladin. I mean, Thor has got to be worthy, doesn't he?

Oath of Storm

The Oath of Storm binds a paladin to specific ideals of worthiness. The oath of storm requires a paladin to be strong in character and to be stalwart fighter in the face of danger. The oath of storm grants powerful abilities over weather and nature to those who are worth its might. Paladins of this oath do not hold them self to high conduct, but are usually loud and boisterous. They do, however, hold themselves to always be good and do what is best for their community before themselves. Many who swear this oath are devoted to gods of righteous war, competition, and strength. As such, paladins of storm often add motifs of mountains, weapons, rivers, glaciers, and of course clouds and lightning as motifs in their armor. 

Tenets of Storm 

Though the exact words of the oaths vary, all who take the Oath of Storm must hold to these tenets. 

Sincerity. Do not lie to those you care about. 

Joy. Life is a gift, enjoy it. Spread that joy to those around you.  

Generosity. Give freely of your riches, even when you have little. 

Bravery. Do not hesitate to face difficult challenges. 

Strength. Be resolute in your decisions. 

Oath Spells

3rd     thunderous smite, thunderwave

5th     magic weapon, gust of wind

9th     fly, call lightning

13th  control water, ice storm

17th  destructive smite, commune

Channel Divinity

When you take this oath at 3rd level, you gain he following two Channel Divinity options. 

    Thunderhead. You can use your Channel Divinity to invoke the storms to strike your enemy. As an action, you can cause a 10 foot radius cloud to appear within 60 feet. The cloud produces a gentle rain and, as a bonus action, can shoot lightning requiring one target of your choice beneath the cloud to make a Dexterity save or take 1d6 lightning damage. This thunderhead lasts until it produces lightning a number of times equal to your Charisma modifier (minimum 1), or after 1 minute. 

    Cow the Weak. As an action, you present your holy symbol and speak a prayer censuring those who are weaker than you. Any creature within 30 feet whose current hit points are less than yours must make a Wisdom saving throw. If the creature fails its saving throw, it is frightened for 1 minute or until it takes damage. 

Stormwalker's Endurance

Beginning at 7th level, the power of storms have made you durable enough to withstand their punishment. You have resistance to bludgeoning, piercing, slashing, lightning, and thunder damage. 

   At 18th level, you gain resistance to all damage. 

Lightning Lash

At 15th level, you can cast a 3rd level lightning bolt without expending a spell slot. You may use this ability again after you finish a long or short rest.
    In addition, strong winds have no effect on you. 

Thundering Champion

At 20th level, as an action you become master of storms. For 1 minute a storm surrounds you in a 30 foot radius and you gain a fly speed of 60 feet. This storm provides total concealment for you and  your allies in the storm. 

     Whenever an enemy creature starts its turn in the storm, the creature takes 10 lightning damage. 

I don't feel like making an Asgardian race since they really aren't that special, so he'll just be a human. Finally the background should be noble, he is the son of Odin after all.

Now that that's done, lets make us a Level 1 Thor Odinson.

Thor Odinson
Human Paladin 1
Background: Noble
Str 16 (+3), Dex 12 (+1), Con 14 (+2)
Int 10 (+0), Wis 12 (+1), Cha 14 (+2)

HP 12, AC 16, HD 1d10
Saves: Wis +3, Cha +4
Speed 30 ft.
Languages: Common, Dwarvish, Elvish
Skills: Athletics +5, History +2, Insight +3, Persuasion +4

Warhammer (Mjolnir) +5, 1d8+3 bludgeoning, versatile 1d10+3
Battleaxe (Jarnbjorn) +5, 1d8+3 slashing, versatile 1d10+3
Javelin (x5) +5, 1d6+3 piercing, range 30/120

Divine Sense 3/day
Lay on Hands

Gear: A set of fine clothes, a signet ring, a scroll of pedigree, a warhammer, a battleaxe, five javelins, an explorer's pack, chain mail, a piece of frozen lightning (holy symbol)

Leveling Thor
As Thor levels up, grab dueling fighting style and then the Oath of the Storm I made earlier. Thor should choose spells that grant him increased power. You can easily fluff his smites as electric looking.
    Ability Score Improvements can be used for warcaster and other such feats, and should also definitely be used to up Strength and Charisma.