Innate Spellcasting. The flesh golem's innate spellcasting ability is Wisdom (spell save DC 12, +4 to hit with spell attacks). It can innately cast the following spells, requiring no spell slots:
Slam. Melee Weapon Attack: +4 to hit, reach 5 ft, one target. Hit: 6 (1d6 + 2) bludgeoning damage. Fire Bolt. Ranged Spell Attack: +4 to hit, range 60/120, one target. Hit: 6 (1d10) fire damage.