Let's invent some very weird pieces

The Chad. Replaces any selected single pawn at the start of the match. One for black, one for white. If the opponent's queen can legally move to place the opposite coloured Chad en prise, then it is mandatory to do so. If it is possible to do so in more than one way, then the player may select their preferred option.

right general: 
Range: moves unlimited amount of squares diagonally backward left or forward right or directly forward. 
Step: can move 1 square backwards
worth 3 points

Train: moves like a rook, bot can jump over the opponents pieces and captured all of the pieces that stand on the squares it passed

After the train is moved, it becomes a rook

Springer: Can only move to the edges of the board for it's first turn, but after that it moves 3 squares in any direction. Captures any piece that is touching it after it's third move, including it's own pieces. If it touches your king you lose, if it touches the opponent king you win.

The Marshall, moves like a rook but blocks the first attack the useThe paladin moves like a knight and then a pawn. It moves like a knight first and then a pawn or attacks like the pawn.

Back and forth pawn: pawn that doesn't promote, but once it hits the last rank, it can move 1 square backwards, and capture diagonally backwards, and so until it reaches the 1st rank again, then it reverts to a regular pawn. It can only move 2 squares on its very 1st move.

The absorber pawn: pawn that absorbs the power of captured pieces. If, let's say, it captures a rook, a bishop, and a knight, then it will become an amazon. If it doesn't capture anything on its way to the last rank, then it can promote just like a regular pawn. But if it has already captured something, then no.