Dwarven Plate of the Paladin

This is awfully pretty for dwarven plate armor...
Usable by a Paladin or Cleric only
{w} Protective Aura: +1 bonus to AC
{g} Inspired Healing: Add 1d4+6 to all healing
spell effects
{s} Battlefield Presence: As a reaction negate up to
20 feet of ground-based knockback
{b} Personal Sacrifice: Drop to 0 hitpoints and fall
unconscious and restore all your spell slots (once
per long rest)