This Mii is a Special Rare Mii, It can he can be found in Swordplay Showdown stages and wears White Armor and uses Golden Sword. If you defeat him you'll be rewarded a Golden Sword.
There's a 1 in 20 chance of finding him
Can only be located in Reverse levels
You can only find him when you've beaten Swordplay Showdown.
He can also be found in Swordplay Dual and Swordplay Speedslice but doesn't have a Golden Sword and White Armor