See the summon beast spell.

Bestial Spirit

Small beast, -

Armor Class 11 + the level of the spell (natural armor)

Hit Points 20 (Air only) or 30 (Land and Water only) + 5 for each spell level above 2nd

Speed 30 ft.; climb 30 ft. (Land only); fly 60 ft. (Air only); swim 30 ft. (Water only)

STR	18 (+4)
DEX	11 (+0)
CON	16 (+3)
INT	4 (-3)
WIS	14 (+2)
CHA	5 (-3)

Senses darkvision 60 ft., passive Perception 12

Languages understands the languages you speak

Challenge -

Proficiency Bonus equals your bonus

Flyby (Air Only). The beast doesn't provoke opportunity attacks when it flies out of an enemy's reach.

Pack Tactics (Land and Water Only). The beast has advantage on an attack roll against a creature if at least one of the beast's allies is within 5 feet of the creature and the ally isn't incapacitated.

Water Breathing (Water Only). The beast can breathe only underwater.

Actions

Multiattack. The beast makes a number of attacks equal to half this spell's level (rounded down).

Maul. Melee Weapon Attack: your spell attack modifier to hit, reach 5 ft., one target. Hit: 1d8 + 4 + the spell's level piercing damage. See the summon beast spell.