Cubic Boi

Gelatinous Trench. Cubic Boi can take an action to begin hollowing out the area it sits on with corrosive ooze, making a slime-filled trench 300 ft. deep. Any creature who steps into this pool will instantly sink to the bottom unless magically aided. A creature in this trench is restrained, cannot cast spells, and takes 4d10 acid damage at the beginning of every turn.

Slippery Multiattack. Cubic Boi can make 3 Godly Smack attacks in one turn, or 1 Godly Smack and 1 Splatter Cannon.

Godly Smack. +10 to hit, reach 25 ft. Hit: 1d100 bludgeoning damage (nonmagical). On a hit, force the target to make a DC 23 STR save, and on a fail, they are knocked as far as the eye can see. Add double the range of all Senses (including regular sight) of the target (minimum 150 ft) and knock them that far in a direction of the Cubic Boi's choice.

Omega Slurp. Force a target within 40 ft. to make a DC 18 CON save, and on a fail, they are sucked inside of the Cubic Boi and forced to roll 1d100 plus their strength and constitution scores. This is the amount of feet that they are sucked within Cubic Boi, restraining them and disabling their spellcasting. This also deals 4d10 acid damage plus half (rounded up) of the distance they were sucked within Cubic Boi. At the beginning of every turn, they take another 4d10 acid damage, and cannot be saved unless the Cubic Boi decides to release them, or it takes 50 or more damage in one turn.

Splatter Cannon. Create 10 10-ft. cubes up to 300 ft. away from Cubic Boi in any direction (they may overlap the same area). All creatures within these cubes must make a DC 20 CON save (re-roll for each cube), taking 4d10 damage on a failed save, or half as much on a successful save (stacks). Any creature hit by these attacks loses 10 ft. of movement speed for 1 minute (stacks). If their movement speed is reduced below 0, they sink in a pool of slime, restraining them, disabling their spellcasting, and dealing 6d6 acid damage every turn until the movement speed reduction ends.

Cubic Boi has 1 legendary action point at the beginning of every battle, and at the end of every round, it gain 1d4 legendary action points for every creature that failed a saving throw against it. Using a legendary action takes its turn.

Acid Rain. Every creature within 300ft. of Cubic Boi must make a DC 30 CON saving throw, and on a fail, they take 1d4 damage for every foot of movement speed they have.

Slimy Whirlpool. Create a 120ft. radius around Cubic Boi that forces everything inside it to make a DC 25 CON saving throw. On a fail, they suffer from the effects of Omega Slurp as if they had failed their CON save. Inanimate objects are also sucked in unless they weigh over 3000 pounds.

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