Stoneguard Plate Mail

This plate armor magically increases the
wearer's AC by +1 (AC 19). When the wearer
falls below half of their maximum hit points,
they gain resistance to non-magical slashing,
piercing and bludgeoning damage.
—
This durable plate mail is adorned with the
dwarven runes and many dents from previous
battles, but seems no worse for wear.