Create a New Fairy Piece!

Essentially, make up a Fairy Chess Piece- but one that's actually serious, something that could be used in a hypothetical Chess variation and be fun to use.

Try to make it balanced! In general, something that can mate a bare king by itself regardless of the position is unbalanced.

Most importantly, be creative! Give it special abilities and moves! Unique movement patterns! Anything you can think of!

I'll start: The Knighght: Moves like a Knight-Rider, but activates an impenetrable fog-of-war on its rook-squares, decreasing the enemy's ability to attack (a reference to "Lighght", hence the name). Each player has one, on a3/6. Cannot capture but can check and thus works best in combination with other pieces. 6 points- down 3 due to not capturing, but plus 2 for the Fog-of-War capability.