based on D&D 5th Edition
Tyrannosaurus Rex
Huge  Monstrosity , Unaligned

Armor Class 13  (natural)
Hit Points 136  (13d12+52)
Speed 50 ft. , swim 25 ft.



STR DEX CON INT WIS CHA
25  (+7) 10  (0) 19  (+4) 2  (-4) 12  (+1) 9  (-1)
Senses passive Perception 14
Languages
Challenge 8  (3900 XP)
Actions
Multiattack. Make one bite and one tail attack against different targets.
Bite. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 33 (4d12+7) piercing damage. Medium or smaller creature is grappled, DC 17. Target restrained.
Tail. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 20 (3d8 +7) bludgeoning damage.