Copper Golem with new function and block type

Copper Golems can have a new function, where the golems can only walk in the four cardinal directions, which could be altered with a Copper Pointer block. This block is made of copper and has a large arrow on the side. Copper Pointers when not oxidized have a 4/4 chance of changing the golems direction, with that chance decreasing by one for each stage of oxidation. When copper pointers are powered via redstone they can change the direction they are pointing.

Copper Golems themselves could have their movement speed determined by oxidation, with the first stage being the fastest and the last being the slowest.