D&D5e Additional Armor

New Armor Types

Armor	Cost	Armor Class (AC)	Strength	Stealth	Weight
Buckler	5 gp	+1	-	-	4 lb
Tower Shield	30 gp	+3	Str 13	Disadvantage	40 lb

• Buckler: This small shield is fitted around the arm and made of metal, wood, or boiled leather. It takes the same time to don and doff as a normal shield (1 action) and a character cannot benefit from a buckler and any other type of shield at the same time. Unlike a shield, a character can still use the hand in which the buckler is equipped. If during a character's turn they use an item with this hand, attack with a weapon in this hand, or attack with a two-handed weapon, then the character does not gain the buckler's bonus to AC until the start of their next turn.
  • Attacking with a one-handed weapon or thrown weapon using the buckler hand causes disadvantage on the attack roll. The hand wielding the buckler does not count as a free hand for the purposes of spellcasting, grappling, or unarmed attacks.
  • A character proficient with shields is also considered proficient with bucklers. A buckler does not benefit from the rules or abilities that specifically refer to shields, such as the Protection Fighting Style or the Shield Master feat.
• Tower Shield: A huge metal-reinforced shield nearly as tall as its wielder. Donning and doffing the tower shield takes 1 action. A character cannot benefit from a tower shield and any other type of shield at the same time.
  • While a tower shield is equipped, its bearer takes disadvantage on all attack rolls due to the off-balancing encumbrance of the shield, unless the weapon has the Light property. A character proficient with both shields and heavy armor is assumed to be proficient with tower shields. All other rules that affect shields still apply to tower shields.

New Armor Materials

• Dragon: Leather, studded leather, scale mail, hide. The powerful virtues of dragon's hide can be invested into suits of armor made of the material by cunning craftsmen. When you're wearing armor made from it, you reduce the damage taken from slashing and piercing injuries by 1. You additionally reduce damage taken from a single damage type that corresponds with the original dragon's breath weapon by 1 (fire for red dragons, lightning for blue, etc). Wearers are warned, however, that dragons do take ill to those they encounter wearing this.
• Adamantine-Reinforced: Chain shirt, scale mail, breastplate, half plate; ring mail, chain mail, splint, plate. Though adamantine is impossible to forge into whole suits of armor, armor can be reinforced with this diamond-hard substance. While you're wearing it, any critical hit against you becomes a normal hit.
• Mithral: Chain shirt, scale mail, breastplate, half plate; ring mail, chain mail, splint, plate. The light, flexible metal that is precious to both dwarves and elves, mithral lends subtlety and grace to the wearer. If the armor normally inflicts disadvantage on Stealth rolls, that property is negated. If it does not, then the armor can be worn normally under clothes without giving away the fact that the wearer is wearing armor.