Halo 3 Rat by Thudnfer

Halo 3 Rat

A terror of the multiverse; this creature has plagued the nightmares of humans for exactly 13 years. And now it is here.

Halo 3 rat

Tiny beast, unaligned

Armor Class 13 (natural armour)

Hit Points 8 (3d4)

Speed 35 ft.

STR DEX CON INT WIS CHA

2 (-4) 14 (+2) 10 (+0) 3 (-4) 10 (+0) 4 (-3)

Senses darkvision 30 ft., passive Perception 10

Languages -

Challenge 1/8 (25 XP)

Keen Smell. The rat has advantage on Wisdom (Perception) checks that rely on smell.

Those Innocent Eyes. Good or neutral creatures have disadvantage on attacks on the rat unless the rat has attacked it in the past 24 hours.

Actions

Bite. Melee Weapon Attack: +2 to hit, 5 ft. reach, one target. Hit: 3 piercing damage

STR	DEX	CON	INT	WIS	CHA
2 (-4)	14 (+2)	10 (+0)	3 (-4)	10 (+0)	4 (-3)

Art Credit

"Halo 3 Rat" by @sprngclean

Variant: Familiar

If your DM allows it, you can choose to summon this monster whenever you cast the find familiar spell.