You are a Construct.

Your Speed is 30ft.

You are 5-6 feet tall. (Medium)

Whenever you start your turn with fewer than 1/3hp, roll 1d20. On a 1, you go berserk. On each turn while berserk, you attack the nearest creature it can see. If no creature is near enough to move to and attack, you attack an object. Once you go berserk, you remain so until you drop to 0hp or are no longer less than 1/3hp.

The golem’s allies, if within 60 feet of the berserk golem, can try to calm it by taking an action to make a DC 15 Charisma (Persuasion) check; the golem must be able to hear its ally. If this check succeeds, the golem ceases being berserk until the start of its next turn, at which point it resumes rolling for the Berserk trait again if it is still Bloodied.

Whenever you are subjected to Lightning damage, you regain a number of Hit Points equal to the Lightning damage dealt.