Other Worldly Patron: The Destroyer

The ancient primordial destroyer has awoken and you have become his hands within the Forgotten Realms. He has given you the boon of his destructive magic; magic that does not come from the weave, but from the destroyer himself, much akin to gods. This is because the destroyer is one of the ancient Eldergods, and he has chosen you. The destroyer commands that you spread his domain of destruction across the multiverse, whether you use his powers for good or bad, he simply thrives on the destruction. 

Eldritch Claws

Starting at 1st level, the Eldritch Blast cantrip is added into your known spells and does not count against your spells known. Additionally, whenever you cast Eldritch Blast, you may choose to cast the spell as a melee spell attack, manifesting the spell as glowing purple claws with a range of 5 feet.

Destroyer's Protection

Starting at 6th level, at the end of a Short or Long Rest, you may choose one damage type and gain resistance to that damage type. You may choose from any damage type available, those being Bludgeoning, Slashing and Piercing from nonmagical attacks, Fire, Cold, Acid, Lightning, Poison, Thunder, Psychic, Force, Radiant, or Necrotic. 

At 10th level, when your Destroyer's Protection is reset, you may choose two damage types to gain resistance to instead of one, and at 14th level, you gain immunity to the damage types you choose with this feature.

This Feature resets when you finish a Short or Long Rest. 

Crash Magic

Starting at 10th level, you may use your action to destroy matter itself. The target of this ability must be an item, surface, or area. As an action, you choose a target within 120 feet, and you may destroy up to 40 square feet and reduce the target to your choice of either a swarm of harmless bright purple embers or scattered bits of what the target once was. If you choose an area populated by living creatures, the creatures are expelled from the area to the nearest unoccupied space and take 3d8 force damage.

If you attempt to target a creature, the feature will not work. If you attempt to destroy a magical item or surface, the target must make a saving throw against your Spell Save DC with a modifier equal to the item's rarity(Common:+1, Uncommon:+2, Rare:+3, Very Rare:+4, Legendary:+5, Artifact:+6) being destroyed on a failed save and surviving on a successful one, instead taking 5d8 force damage. See object rules for item hit points. When destroying magical surfaces that are magical effect(such as the Wall of Force spell), the modifier for the saving throw the spell must make is the same as the spell slot level use to cast the spell.

When destroying surfaces, if you attempt to destroy a creature that is hiding as a part of the environment, such as a Mimic, Shambling Mound, or Treant, the creature must make a Constitution Saving Throw against your Spell Save DC, being pushed 10 feet away from you and take 6d8 force damage on a failed saving throw, taking half as much damage on a successful save. You may not target these creatures if you already know that it is not part of the environment. 

If you target a part of the environment that contains a creature, such as a tree that contains a Dryad or a stone surface that a spell caster has cast Meld into Stone into, the creature is expelled from the area, taking 3d8 force damage, landing in an unoccupied space within 10 feet of their hiding place. If you expel a spell caster who has cast Meld into Stone, the spell ends as described by the spells details in addition to the effect of this feature. 

The size of the amount of space you can destroy using this feature increases by 10 square feet for every level you gain passed level 10.

You may use this feature a number of times equal to your proficiency modifier, regaining all uses of this feature when you finish a Short or Long Rest.

Hakai

Starting at 14th level, the great destroyer has given you the ultimate power he can bestow onto you. Using an action, you may choose a target a creature, an object, or a creation of magical force, such as the wall created by wall of force that you can see within 60 feet of you. The target must make a Constitution Saving Throw. If the target's hit points are below your hit point maximum by 20 or more, the target immediately fails their save. On a failed save, the target is instantly erased from existence, being reduced to bright purple embers. On a successful save, the target takes 13d6+40 force damage, the target is disintegrated if their hit points are reduced to 0, being reduced to embers. If the destroyed target is a creature, all of their equipment with the exception of magical equipment and their soul is destroyed along with them. 

This Feature immediately destroys any object that is not of legendary or Artifact rarity or creation of magical force without any saving throws, and If the targeted object or magical force is Huge or Larger, this ability destroys a 30-foot cube portion of the target. 

Once you use this feature, you can't use it again until you finish 1d4 long rests.