Asterion, The Minotaur of The Labrinth

Labrinth Stalker. The Minotaur can perfectly remember any path it has traveled. It cannot become lost in any maze, dungeon, cave, etc.

Charge. If the Minotaur moves at least 10 ft straight towards its target and then hits with its gore attack on the same turn, the target takes an additional 10 (3d6) piercing damage. If the target is a creature, it must succeed a DC 16 strength saving throw or be knocked prone.

Multiattack. The minotaur makes two melee attacks: one with its Omega axe, and one with its Gore.

Omega Axe. Melee Weapon Attack: +9 to hit, reach 5 ft., 1 target. Hit: 9(1d12 + 2) Slashing damage + 2(1d4) force damage.

Gore. Melee Weapon Attack: +9 to hit, reach 5 ft., 1 target. Hit: 14 (2d8 + 6) piercing damage.

The Minotaur can take 2 legendary actions per round, using them at the end of another creature's turn. 

Snort and Stomp (Costs 1 Action). The minotaur stomps the ground. each creature within 5 ft must succeed a DC 13 Dexterity saving throw or fall prone.

Bull Rush (Costs 2 Actions). The Minotaur moves up to 10 ft in a straight line. creatures in the path must make a DC 15 Strength saving throw or take 1d8 bludgeoning damage and be shoved 10 ft to the side. If the check passes with a 22 or higher, the minotaur is stopped and takes the 1d8 bludgeoning damage instead.