Isn't that cannon the best i think he can move like queen (orthogonaly and diagonaly) Knight (jumps 3 spaces forward 1 horisontaly) And camel(jumps 4 spaces forward 1 horisontaly)
I created a piece on a chess engine that i think may be stronger than the Amazon. It's called the dragon, and in a 10X8 board(the extra space is for the 2 dragons of each color) it has the value of 49 points. It moves like a Queen and Knight togheter and it is invulnerable to other pieces except the opponent's dragons so if you kill all your oponents dragons the game is already yours