Multiattack. The goliath makes two Spear attacks.
Spear. Melee or Ranged Weapon Attack: +6 to hit, reach 5 ft. or range 20/60 ft., one target. Hit:7 (1d6 + 4) piercing damage, or 8 (1d8 + 4) piercing damage if used with two hands to make a melee attack.
Giant's Strikes (Recharge 5–6). Until the end of its turn, the goliath's melee attacks each deal an extra 7 (2d6) damage of a type determined by the goliath's giant community: cold (frost giant), fire (fire giant), force (stone giant), lightning (storm giant), piercing (hill giant), or thunder (cloud giant).
Goliaths are Humanoids distantly related to giants. Infused with the supernatural essence of their ancestors' mountainous home, goliaths have the strength and fortitude to garner a giant's respect. Communities of goliaths who live in close relationship with giants emulate them and are recognized by the giants as kin. These goliath giant-kin often act as liaisons between giant clans and other Humanoids.