Character bio: https://www.weasyl.com/character/9779

Nigel's shield (dubbed the Garkirl shield) is unique in that no matter what 'shield'-based defensive move he's using - be it Protect or Reflect or Mirror Coat or Light Screen or anything like that - it will always keep its uniform shape and color, making it very tricky, if not impossible, to tell the difference with the naked eye unless one actually makes contact with it. It CAN be overcome with a sharp enough eye taking note of the details or a simple game of endurance against the gardevoir, but as time goes on, Nigel's skill as a defensive combatant has been improving considerably, meaning he's not going to be an easy egg to crack.

Also, it 'tings' like a bell when hit a certain way :)