Metallic skin

Allows the user to turn there skin into a metal. Player may choose one metal of there choice but must wait until a long rest in order to change the metal. This ability can be used 1 time between long rests, it only last one minute but can be deactivated any time. It takes a bonus action to activate. Some metals have extra features all of witch take a full action except for copper which they can do at any time but the give up there next turn entirely. Metals and benefits include

Steel: +2 AC and -5 movement 

Gold: +2 Cha (If 20 CHA then raise to 22 CHA) and -5 movement 

Iron: +2 STR (If 20 STR then raise to 22 STR) and -5 movement

Lead: +2 CON (If 20 CON then raise to 22 CON) and -5 movement

Bronze: +2 INT (If 20 INT then raise to 22 CON) and -5 movement

Aluminum: +2 DEX (If 20 DEX then raise to 22 DEX) and Vulnerability to Bludgeoning

Copper:  +2 WIS (If 20 WIS then raise to 22 WIS) and -5 movement

Stat increase only active when feat is activated