Behemoth

Behemoth is the primeval land beast, unmatched in bodily strength and at home among reeds, rivers, and mountains. Its bones are like bars, its tail moves like a cedar, and ordinary predators do not understand it as prey. Catastrophe follows armies, rulers, and desperate hunters who attempt to move, capture, or prove mastery over Behemoth.

Cedar-Tail Sweep: creatures within 30 ft make a Quick save. A failure takes 5d10 bludgeoning damage, moves 20 ft, and falls down. A successful save avoids the damage, movement, and fall. Reed-Breaking Rush: creatures in an 80 ft line make Quick saves. A failure deals 4d10 bludgeoning damage and carries the creature to the end of the line; success halves the damage and prevents the creature from being carried.

Primeval Peace: Behemoth will not attack creatures that stop threatening, binding, or redirecting it. Deep natural water reduces its movement but grants +2 DR.