Catastrophic Quaken

Rock Consumption If a small rock is within 5 ft of a Quaken, they can use one turn to devour it, upon doing so they can either roll 1d10 and regain that amount of hit points or gain +1 to their shot capacity.

Shot Limit. The Quaken has eight shot points. Once it has no points left, it must take a long rest or devour a rock to gain points back.

Stances. The Quaken can choose to switch between two stances, its offensive stance and its defensive stance. In offensive stance, the Quaken can use all normal attack rolls and can add a 1d10 die to one of its rolls each round. In defensive stance the Quakens armor increases to 17, can only roll as its walking speed, and can only attack with the actions listed in the defensive category. 

Camoflague. The Quaken has advantage on Stealth checks in rocky environments. 

Tough Scales. The Quaken takes half the damage from falling. 

Lava Spray (Costs 2 Shot Points). The Quaken exhales a 15 foot cone of lava, any creature within that range must make a DC 15 Consitution saving throw or take 26 (3d10+11) fire damage. 

Shockwave (Defensive Stance). The Quaken hurls itself in the air and smashes back into the ground releasing a shockwave in a 30ft sphere. Any creature within the area must make a DC 14 Strength saving throw or take 15 (2d10+5) thunder damage, move 15 feet back and be knocked prone, or take half as much and be sent back 5ft, not prone, on a save. On a critical fail the creature is deafened. Creatures take an extra 10 bludgeoning damage if they are within 5ft of the Quaken.

Tail Bash. Melee Weapon Attack: +13 to hit, reach 5 feet. One target. Hit: 23 (3d10+8) piercing damage.

Bite. Melee Weapon Attack. +10 to hit, reach 10 ft; one target. Hit: 23 (3d10+8) piercing damage.

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Brute Charge. If the Quaker moves at least 15 feet straight towards a creature, it has the option to perform a charge at them. The target must succeed on a DC 15 Dexterity Saving throw, taking 18 (2d12+6) force damage on a failed save and be knocked prone or half as much on a successful one. If the target is prone the Quaken can make a tail bash as a bonus.

Large Size. The dragon has a disadvantage on Dexterity rolls when dodging an object. They also have a disadvantage on Stealth checks.

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