Pawn pawner
Loses all your pawns
The Putin - rides shirtless on one of your knights, shouts, "Hi ho, Silver!", goes around the board promoting all your pieces to Mercedes-Benz Hot Wheels, takes them as his own pieces and naming them zee Trump 1, zee Trump 2, zee Trump 3... Then takes the chessboard and absconds with it, Russian off with it. Da!
The dogger
Doesn't move until you gets checkmated and can eat the piece attacking(exsept it is a double check).
The Destroyer. Moves one square forward or backwards. If you don't move it, it gets upset and kills your pieces in a order like: Queen, Rook, Rook, Bishop, Bishop, Knight, Knight, Pawns. Can't capture and takes up the row in front of your pawns.
Evil Wizard: Turns your pieces but the king into enemy pieces.
Do you mean your opponents?
The Socially awkward Kid. A white and black pawn on e4 and e5 respectively. When a pawn moves on the c or e column, they run into your queen and knock it out.
The pawnie-pawn-pawn
Moves like a pawn, but gets eaten if a opponent pawn is near it.