Immutable Form. The golem is immune to any spell or effect that would alter its form.

Magic Resistance. The golem has advantage on saving throws against earth and life (plants) related spells and other earth and life (plants) related magical effects.

Magic Weapons. The golem's weapon attacks are magical.

Multiattack. The golem makes two slam attacks.

Slam. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7(1d4+4) bludgeoning damage.

Morning Star Smash. Melee spell Attack: +6 to hit, reach 10ft, one target. Hit: 10(1d8+5) bludgeoning damage. If a creature is with in 15ft of the shrapnel explosion after the smash, the creature has to make a dexterity saving throw or take 3(1d4) piercing damage. The morning star dissipates after the shrapnel explosion.

Spellcasting. The golem is an 4th-level spellcaster. Its spellcasting ability is wisdom (spell save DC 13, +5 to hit with spell attacks). The golem can cast the following druid spells :

Cantrips (at will): Magic Stone, Mold Earth, Thorn Whip

1st level (4 slots):Cure Wounds,Earth Tremor, Thunderwave

2nd level (3 slots):Earthbind, Flame Blade,Moonbeam, Spike Growth