Pact of the Collar

• Your patron gives a collar, with this collar you can absorb a set of armour (other than a shield) into your collar by performing a special ritual while you wear the armour. You can't affect an artifact or a sentient weapon in this way. You perform the ritual over the course of 1 hour, which can be done during a short rest. After which it it is shunted into an extradimensional space connected to your collar. The collar can store 3 sets of armour at a time. If you die all sets stored in you collar are ejected, if you perform the 1-hour ritual on a 4th set one set of your choice is ejected, if you use a 1-hour ritual to eject one or more sets from your collar. An armour set or sets appears at your feet if it is in the extradimensional space when it is ejected.
• While wearing your collar you can use your bonus action activate it, at the start of your next turn you summon a set of armour, that has been absorbed by your collar, around you donning it. If you are wearing a set of amour when the amour is summoned, that armour is instantly doffed and lands at your feet. You are proficient with this armour while you wear it and it can't be removed from you.
• Your collar absorbs the set of armour again ten minutes after you summoned it. It is also absorbed if you summon a new set, or if you dismiss it using a bonus action.