Stench: if a creature is in 10 ft of the Abomination must succeed on a Con save DC 12 or be poisoned, at the end of its each turn they make another Con Save, if succeeds cannot be poisoned by this effect for 24 hours. 

Multiattack 2 attacks one with a cleaver one with a hook

Cleaver  +4 to hit, reach 5 ft., 1 target. Hit: 1d6 + 4 slashing damage. 

Hook +1/+4 to hit, range 30ft., 1 target. Hit: (1d6 + 4) [piercing] damage. if it hits, then he can pull the target to himself.