Charged Armor

Prerequisite: Pact of the Blade feature

Armor that you are wearing can store warlock spells you cast, up to one spell at a time. You can cast this spell into the armor by touching your armor as the spell is cast.

A creature of your choice can cast the spell stored in your armor while touching it, using the slot level, spell save DC, spell attack bonus, and spellcasting ability of the original casting. The spell is then expended. If your armor is unequipped for 1 minute or more, the spell dissipates from the armor.

While you wear your armor, it can also be used as an arcane focus by you or creatures of your choice that are touching it.

Eldritch Warding

Prerequisite: Pact of the Blade feature
While you wear armor, it gains a +1 bonus to AC, unless it is magic armor that already has an AC bonus.

In addition, you can use your Charisma modifier in place of your Dexterity modifier when determining your AC.

Pact Armor

Prerequisite: Pact of the Blade feature
You gain proficiency with medium armor, and can transform or attune to a suit of armor you’re proficient with in the same manner as you would your pact weapon.

While you are bonded to a suit of armor in this way, you can summon it onto your body as an action.

Your pact armor disappears if it is more than 5 feet away from you for 1 minute or more. It also disappears if you use this feature again, if you dismiss the armor (no action required), or if you die.

Poltergeist Armor

Prerequisite: Pact of the Blade feature
As a bonus action, you can cause a suit of armor you're wearing to disassemble with precision and hover outward a few feet from your body, allowing you to occupy space and provide cover as if you were a Large creature, while remaining armored.

While this effect is active, wearing armor doesn't impose disadvantage on your Dexterity (Stealth) checks, and it never impedes your rest. You can use a bonus action to reassemble your armor back onto your body.

Soulbinder

Prerequisite: 11th level, Pact of the Blade feature
As an action, you can animate your armor. It transforms into an animated armor (the DM has the creature’s statistics), which takes its turn on your initiative and obeys your orders (no action required).

Add any bonuses to your armor’s AC to the creature’s AC, attack and damage rolls. While you occupy the same space, it moves as though mounted on you and confers standard armor bonuses, and can intercept up to half of the damage dealt to you. If your animated armor drops to 0 hit points, it becomes inanimate until you complete a long rest.