Giant Lizard

Large beast, unaligned
Armor Class 12 (natural armor)
Hit Points 19 (3d10 + 3)
Speed 30 ft., climb 30 ft.
STR
15 (+2)
DEX
12 (+1)
CON
13 (+1)
INT
2 (-4)
WIS
10 (+0)
CHA
5 (-3)
Senses darkvision 30 ft., passive Perception 10
Languages -
Challenge 1/4 (50 XP)
ACTIONS

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 6 (1d8 + 2) piercing damage.

Giant lizards are fearsome predators often used as mounts or draft animals by reptilian humanoids and residents of the Underdark.
Monster Manual (SRD) D&D 5 › Monsters