Diamantinasaurus (5e Creature)
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Gargantuan beast (sauropod), unaligned
Tail. Melee Weapon Attack: +11 to hit, reach 15 ft., one target. Hit: 16 (3d10 + 7) bludgeoning damage, and if the target is a creature, it must succeed on a DC 19 Strength saving throw or be knocked prone.
Stomp. Melee Weapon Attack: +11 to hit, reach 10 ft., one prone creature. Hit: 18 (4d12 + 7) bludgeoning damage
The Largest creature in the harsh lands of the Outback. This Titanosaur wanders the terrain in herds of 10 members, with a matriarch and 2 males, along with 7 lesser females.