Cooled Body. A creature that touches the frost salamander or hits it with a melee attack while within 5 feet of it takes 7 (2d6) cold damage.

Cooled Weapons. Any metal melee weapon the frost salamander wields deal an extra 3 (1d6) cold damage on hit (included in the attack).

Multiattack. The frost salamander makes two attacks: one with its spear and one with its tail.

Spear. Melee or Ranged Weapon Attack: +7 to hit, reach 5 ft., or range 20/60 ft., one target. Hit: 11 (2d6 + 4) piercing damage or 13 (2d8 + 4) piercing damage if used with two hands to make a melee attack, plus 3 (1d6) cold damage. 

Tail. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage plus 7 (2d6) cold damage, and the target is grappled (escape DC 14). Until this grapple ends, the target is restrained, the frost salamander can automatically hit the target with its tail, and the frost salamander can't make tail attacks against other targets.