what should i add to chess 2

I have a 1 in 5 chance to take a piece and turn it pink (make it immovable and capturable by both sides) when it is moved

Goku

Add a flomple

When a knight goes to the end of the board, they will turn into the roaring knight

New pieces
Chancellor: Rook + Knight
Archbishop: Bishop + Knight
Amazon: Queen + Knight (unlocked through lootboxes you get randomly upon capturing)