SRD
Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 6 (1d8 + 2) piercing damage.
VARIANT: GIANT LIZARD TRAITS
Some giant lizards have one or both of the following traits.
Hold Breath. The lizard can hold its breath for 15 minutes. (A lizard that has this trait also has a swimming speed of 30 feet.) Spider Climb. The lizard can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.