Sure-Footed. The Abdarainurus has advantage on Strength and Dexterity saving throws made against effects that would knock it prone.

Solid Courage. The Abdarainurus has very few natural predators and knows no fear. As a result, it is completely immune to being frightened. 

Titan Stomp. Melee weapon attack. +7 to hit, reach 10 ft., one target. Hit: 21 (4d8+ 3) bludgeoning damage. The Abdarainurus partially rears up on its back legs and then brings down both its front legs and feet in powerful stomp. 

Neck Sideswipe. Melee weapon attack. +7 to hit, reach 10 ft., one target. Hit: 15 (4d6+ 1) bludgeoning damage. The Abdarainurus does a low sideswipe with its muscular neck in an attempt to strike its opponent. The opponent in question must succeed on a DC 13 dexterity saving throw or be knocked prone.

Forceful Headbutt. Melee weapon attack. +7 to hit, reach 10 ft., one target. Hit: 11 (4d4+ 1) bludgeoning damage. The Abdarainurus lowers its neck and head and then attempts to headbutt its opponent with the full muscular force of its neck behind it. The targeted opponent must succeed on a DC 12 dexterity saving throw or be pushed back 15 feet. 

Frontal Debris Kick. Melee weapon attack. +7 to hit, reach 10 ft., one target. Hit: 16 (4d6+ 2) bludgeoning damage. The Abdarainurus lifts one of its thick front legs and kicks low at its opponent. If there terrain is solid and the attack hits, the opponent will only receive the bludgeoning damage listed above. However, if there is any loose soil, sand, or other substantial debris, the opponent must succeed on a DC 13 dexterity saving throw or be blinded for one turn due to getting debris in their eyes. 

Hind Leg Kick. Melee weapon attack. +7 to hit, reach 10 ft., one target. Hit: 16 (4d6+ 2) bludgeoning damage. The Abdarainurus kicks out at a single opponent with either it's right or left back leg. Their opponent must make a DC 12 strength saving throw, or else the opponent stumbles and take a penalty of 5 less movement speed off their total movement speed at the beginning of their next turn. The penalty only applies for that one turn. 

Tail Swipe Parry. If the Abdarainurus has been the recipient of a successful melee attack, it can choose to respond by swiping at the attacking opponent with its tail. The opponent must then make a DC 11 dexterity saving throw. On a successful save the opponent is knocked back 5 feet and stumbles but remains standing. On a failed save the opponent is knocked back 10 feet and lands prone. The Abdarainurus can only use this reaction twice per long rest. 

Stomping Flurry. If the Abdarainurus has been the recipient of an attack that did damage to it, it can immediately respond to the attack by repeatedly stomping the ground with the full force of its weight. The stomps of the Abdarainurus cause the ground around it to shake violently. Any opponents within a circular 15 ft radius around the Abdarainurus must succeed on a DC 11 dexterity saving throw or be knocked prone. The Abdarainurus can use this reaction once per long rest.