armor of persistence Arcane armor

This armor set consists of platemail and a pair of boots each granting their own respective effects while the user is wearing them.

Plate: You have a +2 bonus to AC, resistance to bludgeoning, piercing, and slashing damage, and a 1d4 bonus to all saving throws while wearing this armor. In addition, all incoming damage you take is reduced by an amount equal to half your proficiency bonus, rounded down.

Boots: Your speed increases by 10 feet. Your movement is unaffected by difficult terrain, and spells and other magical effects can neither reduce your speed nor paralyze or restrain you. You can also spend 5 feet of movement to escape nonmagical restraints such as manacles or creature that has grappled you. 

Artificer addtions

Helmet/Focus:  + 2 to spell attack rolls ignores half cover when making a spell attack.

Chestpiece: You gain resistance to cold damage while wearing this armor.

Gauntlets: Your Strength score becomes 19 while wearing these gauntlets.
This has no effect if your Strength is already 19 or higher.

Boots:While you wear these boots, you have a flying speed equal to your walking speed. You can use the boots to fly for up to 4 hours, all at once or in several shorter flights, each one using a minimum of 1 minute from the duration. If you are flying when the duration expires, you descend at a rate of 30 feet per round until you land.

The boots regain 2 hours of flying capability for every 12 hours they aren't in use.

After all time is used, you can’t fly again until you finish a long rest.
If you are flying when the duration ends, you descend at 30 feet per round until you land.

Plate consists of shaped, interlocking metal plates to cover the entire body. A suit of plate includes gauntlets, heavy leather boots, a visored helmet, and thick layers of padding underneath the armor. Buckles and straps distribute the weight over the body.

Notes: Resistance: Piercing, Resistance: Bludgeoning, Resistance: Slashing, Bonus: Saving Throws, Bonus: Speed (Walking), Resistance: Cold, Bonus: Spell Attacks, Set: Strength Score, Bonus: Armored Armor Class, Bonus: Armor Class, can be attuned to by the creator, Str. 15 Required, Stealth Disadvantage