Arox

Reflecting skin. The Arox have a special fur, it's allows it to prevent the weather damage of it's enviroment and the attacks of another creatures. smallers and similar in size. 

Spellcasting. The Arox is a 5th-level spellcaster. Its spellcasting ability is Intelligencee (spell save DC 16, +8 to hit with spell attacks). The Arox has following spells prepared:
Cantrips (at will): Firebolt (If its a desert Arox), Frostbite (if its a artic Arox), Gust (If its a mountain Arox), Dancing Ligths and Minor Illusion.

For a dessert Arox  

1st level (8 slots): - Create or destroy water, Foug cloud, Magic misil, Sanctuary, Shield, Sleep.

2nd level (5 slots): Dust devil, Heat metal, Invisibility, Mirror image, Scorching ray. 

3rd level (2 slots) : Melf's Minute Meteors, Wall of sand.

For a artic Arox

1st level (8 slots): -Expeditious retrive, Feary fire, Ice Knife, Magic Misil, Shield.

2nd level (5 slots): -Alter self, Invisibility, Mirror image, Misty step, Snilloc's snowball swarm.

3rd level (2 slots):- Sleet storm, Tidal wave. 

For a mountain Arox

1st level (8 slots):-  Alarm, Catapul, Earth tremor, Magic misil, Shield, Thunderwave.

2nd level (5 slots):- Invisibility, Gust of wind, Mirror image, Shatter, Warding wind.

3rd level (2 slots):- Call lightning, Lightning bolt.

Multiattack. The Arox bend down and lift its two tails, attack whit them and then make a bite attack.

Action Melee Attack. Bite Attack: +5 to hit, reach 5 ft., 1 target. Hit: 8 (2d6 + 2) [piercing] damage. 

Action Ranged Attack. Tail Attack: +6 to hit, range 15 ft., 1 target. Hit: 11 (2d8 + 3) [bludgeoning] damage and the targe must succed on a DC 15 stregth saving trow or be restrained. If the saving trow fails by 10 or more the targe also get 4 (2d4) extra bludgeoning damage.