Amulet of the Forge

An amulet of white metal with holy significance to a god of creation (Moradin, Gond etc) with a circular amber gem attached to the center. 

To attune properly, the user must embed the amber gem into a set of armor (can be magical/ can include a shield). the armor then gets stored in an extradimensional space. The user can now use a command word and an action to magically summon the armor fully donned on the user. 

When summoned the armor fits perfectly even if it didn't originally and is warm to the touch

To un-attune the gem from the armor requires a dispel magic spell(DC 16), summoning the amber gem back to the amulet and dropping the original armor on the ground 5 feet away.

Notes: A cleric or paladin, Summoning, Utility, Combat, Container, Necklace