Shields

Buckler

As a bonus action, you may strike with your buckler using your Strength or Dexterity as if it were a simple melee weapon with finesse, dealing 1d4 bludgeoning damage on a successful hit.

The buckler can benefit from any ability or feature that would affect a mace or a fist, but still counts as a shield.

You may not use a buckler if you are wearing heavy armour.

Light Shield

The targe may be donned or doffed using a bonus action, instead of an action.

Heavy Shield

If you are attacked by a creature of at most one size larger with a melee attack, but the attack does not hit, you may expend your reaction to make an opposed Strength check against the creature. If successful, you knock the creature off balance, giving the next attack against them advantage.

If you are mounted, you may add +2 to your mounts armour class.

Tower Shield

Tower Shield is a two handed shield, you may use it with a single hand, doing so will reduce the bonus to a +4 and would incur disadvantage to any action performed with your hands. This disadvantage can be overcome for characters with 16 STR or over.

As an action, you may plant the tower shield into the ground, doff it, and hide behind it, giving you the benefit of full cover from the front and no cover from the sides or back.

If you are carrying the shield on your back it gives you +5 bonus from any attacks that come from the opposite direction you are facing.