Multiattack

The pech stonemaster makes two attacks: one with its pick and one with its hammer. If the pech stonemaster hits the same target with both attacks, the target must succeed on a DC 13 Constitution saving throw or be stunned until the start of its next turn.

Pick

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 8 (1d8 + 4) piercing damage.

Hammer

Melee or Ranged Weapon Attack: +6 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 7 (1d6 + 4) bludgeoning damage.