weakened frost giant vampire

Vampiric bite. on a successful hit with a bite gain 1d10+1 temp hit points 

cold blood. when hit with a melee attack from 5ft or closer that deals more than 15 damage, the attacker must make a dc 13 dex save to dodge the blood spray otherwise taking 1d4 cold damage

Action bite. melee attack: +6 to hit, reach 5ft, 1 target. hit: (2d10+2) 

Action Melee Attack. Melee Weapon Attack: +6 to hit, reach 15ft, 2 target. Hit: 13(2d6 + 3) bludgeoning damage. 

Action Ranged Attack. Ranged Weapon Attack: +6 to hit, range 30/180 ft., 1 target. Hit: 13 (2d6 + 3) piercing damage.

Action multi attack. makes one club attack and one bite attack. 

opportunity attack