The chain god (Elder god)

It is said there is a great cult surrounding the chain god, a deity so powerful that it could destroy planes as it pleased. You share ways with this cult, maybe you were once part of it or maybe you learnt from the chain god himself and have nothing in common with them. Warlocks who took this path have been reported to go insane with the sheer amount of power handed to them.

Chain bonus

You gain the ability to maintain ethereal chains. The chains deal 1d4 necrotic damage each. The chains are indestructible but can be summoned in and out. The chain’s strength is equal to yours. You can summon chains equal to your level. The chains can do the following:

Chain whip (action):

You lash out with the chains, dealing 1d4 damage for each chain you have summoned.

Chain block (passive):

You block attacks with the chains passivley, reducing the damage by 1 + strength modifier for each chain you have.

Chainmail bonus

If you are wearing chainmail armour, your AC becomes 18. Additionally, chainmail does not impede on your spellcasting ability.

Sacrifice

When you defeat a foe, you can call on your patron and bestow the soul upon him. When this happens, you are restored to full health as repayment.

Metal hands

Once per turn, as a bonus action, you may transform your hands into metal, when punching with these hands you deal 1d10 bludgeoning damage. If you are attacking with these fists and you are wearing chainmail armour, you can attack with your chains too.

Chain master

You gain improved ability over your chains, you can now use them as arcane focuses and you can cast the spell heat metal on them at will. Additionally, you can add your strength modifier to attack rolls made by your chains.