The Imperial Escutcheon is a hardmode craftable accessory that combines the effects of the Decoration of Valor, Starcrest Shield and Illustrious Gel. It increases the player's maximum mana and hp by 80 and 100 respectively, damage reduction by 8%, 12% when under 25% health, damage by 5% and reflects melee damage done to the player back to the attacker.
The Imperial Escutcheon is a very viable all-round accessory that can be useful for any class, because of the damage reduction and increase as well as the bonus to hp as well as mana.
All the bonuses, excluding the invincibility of the Starcrest Shield and the damage reflection of the Ring of Blades/Decoration of Valor, stack with the accessories used to create the Imperial Escutcheon.
In heraldry, an escutcheon is a shield centered in the middle of an achievement of arms or coat of arms.