This beautifully ornate shield’s pale white colour is contrasted by the bright red stamp on its face.

While attuned to Yours Truly, you gain access to the Return to Sender ability alongside the following spells:
Message
Colour Spray
Grease
Illusory Script
See Invisibility
Skywrite

Return to Sender
You may take a melee attack against a target within 5ft using your action, attempting to slam the shield’s stamp into the target, treating the shield as a simple melee weapon that does 1d4 damage.
On a hit, the target is “stamped”, granting attacks against them until the start of your next turn.
Once a target has been stamped in this way, you must wait until a short rest is completed before trying again.