Heart of Steel Your heart pumps liquid metal, creating a robust layer of Physical Armor. This regenerates each turn. Restore 3 Physical Armour for 4 turn(s). Requires Polymorph 2 Requires 1 Memory slot Physical Armor Resist Cooldown: 5 round(s) Polymorph Skillbook Recipe Blank Skillbook Polymorph + Heart Of Steel Scroll Scroll Recipe Sheet Of Paper + Life Essence + Metal Sheet Of Paper + High Quality Life Essence + Metal Sheet Of Paper + Alien Life Essence + Metal Location ???