Elder Skeltons

An elder skeleton deep under ground that looks older and has many arrows sticking into it (symilar to players), and when it dies these arrows shoot out randomly around it to hit nearby entities/players. This mob should have a bit more health and should shoot arrows that do more damage and knock back but the mob should move slower. This mob should have a higher chance to drob bows and enchanted bow as well as more arrows, and should act as a way for players to get a bow earlier and get more arrows without needing to grind in exchange for a challenge.