Small to Large terrestrial animal (your creature type doesn't change),
Armor Class: 10 + your Wisdom modifier
Hit Points: you continue to use your hit points and hit dice
Speed:
40 ft
, climb: 40 ft
Senses: Your strength and dexterity are equal to your wisdom score. You use your scores for the other ability scores.
You don't Gain a climb speed until level 5.
Darkvision 60 ft.
Proficiency bonus equal to your proficiency bonus.
Keen Senses. you have advantage on wisdom (perception) checks
Languages: the languages you know
Actions
Bestial Strike. Melee attack: your spell attack modifier to hit, reach 5ft., one target. Hit:1d8 + your Wisdom modifier bludgeoning, piercing, or slashing damage
Multiattack (requires 5th+ level). you make two bestial strike attacks.