Ariok Shaman

Charge. If the Ariok moves at least 10 feet straight toward a target and then hits it with a gore attack on the same turn, the target takes an extra 9 (2d8) Bludgeoning damage. If the target is a creature, it must succeed on a DC 14 Strength saving throw or be pushed up to 10 feet away and knocked prone.

Mountain Master. Ariok get Advantage on Acrobatics and Athletics checks when on mountainous terrain.

 Spear: 1d6 piercing

Club. 1d4 bludgeoning

Spellcasting. The Ariok Shaman is a 4th-level spellcaster. Its spellcasting ability is Wisdom (spell save DC 12, +4 to hit with spell attacks). It has the following druid spells prepared:

Cantrips (at will): druidcraft, produce flame, shillelagh

1st level (4 slots): Entangle, longstrider speak with animals, thunderwave

2nd level (3 slots): spider climb, spike growth