Arachanox

Multiattack. The scorpion makes three attacks: two with its claws and one with its stinger or it can Burrow. 

Claw. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 6 (2d8 + 2) bludgeoning damage, and the target is grappled (escape DC 12). The scorpion has two claws, each of which can grapple only one target.

Sting. Melee Weapon Attack:  +8 to hit, reach 15 ft., one creature. Hit: 7 (2d10 + 2) piercing damage, and the target must make a DC 12 Constitution saving throw, taking 22 (4d10) poison damage. 

When Arachanox sting's an enemy they must make Strength saving throw DC 12 on a failed save that player is stuck for 1 turn.    

Charge. Melee attack. When Arachanox moves 15ft or more in a straight line any creature he runs over must make a DC 14 Dex save or take 2D8 Damage and fall prone. This creature loses it's opportunity attack against Arachanox. 

• if this is paired with a successful Claw attack, add 1d8 to each attack on top of the Charge damage. 
• If this attack slams a character in a wall or pillar, both Arachanox and the player must make a DC 10 Constitution Save or be stunned for 1 turn.  

Burrow. Burrows into the ground becoming un-targetable unless shapes earth or earthquake related spell occurs. When Arachanox burrows he summons 10 scorpions (Giant / Regular). 

• This cannot occur more than once in 2 turns.
• Burrow Scorpions Life Steal: 
  • Roll 10D10, for every 8 and above summon a Giant Scorpion, 1-7 summon regular scorpion. 
  • the damage these scorpions do to a character heals Arachanox. 
• Burrow Charge. Move 15 ft or more in a straight line. Charging toward a character and bursting out of the ground at their location. That player must make a dex saving throw of 15 or get launched in the air and back 20ft and take 3d4 piecing damage on top of fall damage 
• Burrow Pierce. Range: 15Ft. While burrowed Arachanox can pierce the ground with it's stinger from under a creature. The creature / player must make a dc 10 dex save or take 2d6 damage