Poisonous Snake
Tiny Beast, unaligned
Armor Class 13
Hit Points 2 (1d4)
Speed swim +30, walk +30
Challenge 1/8
STR
2
-4
DEX
16
+3
CON
11
+0
INT
1
-5
WIS
10
+0
CHA
3
-4
Senses blindsight 10 ft., passive Perception 10
Actions
Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 1 piercing damage, and the target must make a DC 10 Constitution saving throw, taking 5 (2d4) poison damage on a failed save, or half as much damage on a successful one.
Source: 5e Core Rules · OGL/Open