Crasher

Keen Smell. The Crasher has advantage on Wisdom (Perception) checks that rely on smell.

Wall Breaker. The Crasher has advantage on Strength and Attack rolls checks for 3 rounds after breaking a walls.

Known perception. The Crasher immediately knows when a creature is aware of its presence, no check required.

Thunderous Movements. The Crasher makes loud movements and breathes loudly, having disadvantage on Dexterity (Stealth) checks.

Accelerating Rush. The Crasher speed increases 10 ft. for every turn a Clashing Crush doesn't hit.

Clashing Crush. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 19 (3d8 + 6) slashing damage plus 7 (2d6) thunder damage. On hit, the target must make a DC 16 Strength saving throw or be forced 15 ft back and knocked prone.

Thunder Screech. (Recharge 5-6). 20 ft cone effect: The Crasher releases a sonic screech. Targets in the cone must make a DC 14 constitution saving throw or be stunned until the end of their next turn, and be deafened for 1 minute.

Mach-1 Impact. (once per shortrest). 20 ft. radius: The Crasher slams their fists into the ground creating a thunderous shockwave that destroys the terrain (difficult terrain in same radius). Each creature within the shockwave radius must make a DC 14 constitution saving throw or take (3d6+3) thunder damage or half as much on a successful save.

Rush Crash. Melee Weapon Attack: +8 to hit, line 15 ft. Hit: 19 (3d8+6) bludeoning damage. All targets hit must succeed a DC 16 Strength saving throw or be forced 15 ft back and knocked prone. Rush Crash can only be used if the Crasher's movement speed exceeds 40 ft.