When you take the Devour action, make a Strength(Athletics) check on a target that is grappled by you, restrained, charmed by you, or incapacitated, contested by the target's Strength(Athletics) or Dexterity(Acrobatics) check (their choice). If you're able to make multiple attacks with the Attack action, this attack replaces one of them.
After making one successful Devour check, the target is Partially Swallowed, meaning they are both grappled and blinded. If the target fails a second contest, they are successfully swallowed and the grapple ends. Creatures that are Charmed by you or are Restrained or Incapacitated have disadvantage on their Strength(Athletics) or Dexterity(Acrobatics) check. If the creature you are trying to swallow is 1 or more size categories larger than you, you require 1 additional Devour check to consume them per difference in size category. If the creature you are trying to swallow is 1 or more size categories smaller than you, you require 1 less Devour check in order to consume them (minimum 1).
Sometimes, you aren't the one looking to be stuffed. If a creature is eligible to be Devoured by you, you may instead take the Feed action to attempt to feed them to a willing creature. Make a Strength(Athletics) check, contested by the target's Strength(Athletics) or Dexterity(Acrobatics) check (their choice). If you're able to make multiple attacks with the Attack action, this attack replaces one of them. On a success, treat the creature being fed as having made a successful Devour check against the other creature.
The swallowed target is blinded and restrained, and it has total cover against attacks and other effects outside of you. At the start of each of your turns, you may choose to fill your stomach with acid, dealing 1d8 + your Constitution modifier acid damage to all creatures in your stomach.
Once a creature reaches 0 hit points, its body starts to dissolve. Every 10 minutes, all creatures with 0 hit points larger than Tiny in your stomach decrease by 1 size category. Tiny creatures are dissolved completely. At the start of each 10 minute interval, roll a d20 for each piece of gear in your stomach. For non-magical items, on an Even result, the item is destroyed. Magical items and items made of Adamantine cannot be digested.
A creature's capacity depends on its size. Certain creatures may have special traits that allow them to defy these rules, and certain spells may affect capacity. A creature's capacity reflects on how much it can carry and a creature's capacity points reflects on how many points it counts as when devoured by another creature.
When at or over half capacity, a creature's speed is reduced by half. When at or over capacity, a creatures have Disadvtanage on Stealth and Acrobatics checks, as well as Dexterity Saving Throws. When at or over three-quarters of their maximum capacity, creatures are Restrained. Creatures over their Maximum Capacity take 1d10 bludgeoning damage at the end of their turn for every 4 points they are over their maximum capacity.If the total capacity points of creatures in your stomach reaches one of the numbers in the chart, it takes up the corresponding amount of space.
Races with a trait that makes them count as one size larger when determining their carrying capacity do not have their speed halved when at or over half capacity, though they still suffer all other effects.
Often times, devouring a target is a risky move. If they are stronger than you or have a natural weapon such as spines or a fiery body, succesfully digesting them may prove nearly impossible.
Sometimes, devouring an enemy may leave you vulnerable, or in an awkward position. Will walking around with the stomach still thrashing with a creature inside disturb or intimidate the people around you?
Addtionally, be careful about what they carry on their person. Devoured potions may take effect, and valuable gear may be destroyed unless the target is thoroughly searched first.
When you finish digesting a creature (or multiple creatures), your physical needs for food are put on pause for a time. Your days without eating are reset to 0, and do not begin to accumulate until a number of extra days. The amount of extra days you recieve depends on your capacity as well as the amount you ate.
Ingesting new meals before your extra days are used up does not add extra days. If the new meal would give you more extra days than you currently have remaining, take the new result. Otherwise, the new meal does nothing besides go straight to your hips.
A creature inside of a stomach can use their action to struggle, giving them a chance of escape. They may make a Strength(Athletics) check against your Stomach DC, which is equal to 10 + your constitution modifier + your proficiency bonus. On a success, the predator marks 1 level of Indigestion
As an action, a creature can clench their stomach and steel their resolve, stifling attempts to escape. Until the end of their next turn, creatures inside of them have disadvantage on struggle checks.
The % increase is based on the creature's "Normal" weight, before any meals or extra weight are calculated.
The weight gained from a meal disappears steadily, vanishing at a rate of 20 lbs per day until the creature returns to normal weight.
This ruleset assumes that as a predator's Capacity increases, so does their metabolism. If you want to assume that metabolism stays the same, try estimating the weight of each prey, then add half of each prey's weight to the predator's weight after digestion. This weight builds up much faster for large meals, so watch out!
Gastro Points You gain Gastro Points equal to half the capacity points of creatures in your stomach at the start of your turn. Your gastro points reset to 4 each time you take a short or long rest. You may store gastro points up to double your capacity
Flavoring Strike When you hit with a weapon attack, you may spend 4 gastro points to mark the target. The next Strength(Athletics) - made to Devour the target is made with Advantage.
Disrupting Strike When you hit with a weapon attack, you may spend 4 gastro points to force the creature to make a Constitution Saving Throw. On a fail, they are poisoned until the end of your next turn.
Mouth Cannon When you make an attack, you may spend 4 gastro points to regurgitate a creature with great force in place of the attack. Make a ranged attack on any target within 30 feet. On a hit, both that target and the creature take 1d6 bludgeoning damage for each capacity point of the creature.
Projectile Eater When you or a creature within 5 feet of you is targeted by a ranged weapon attack, you may spend 2 gastro point and your reaction to reduce the damage done by 1d12 + your Constitution modifier + your fighter level. If the damage is reduced to 0, you may swallow the projectile. If the projectile was a potion, you gain it's effects immediately.
Hearty Belch When you make an attack, if you have at least 1 creature in your stomach, you may spend 4 gastro points to let out an ear-shattering belch in place of the attack. All creatures within 5 feet of you must make a Constitution Saving Throw. Affected creatures take 2d6 + your Constitution Modifier thunder damage on a fail, or half on a success.
Launching Belch When you make an attack, if you have at least 1 creature in your stomach, you may spend 4 gastro points to let out an powerful belch in place of the attack. If the target is Large or smaller, it must make a Strength saving throw. On a failed save, you push the target up to 20 feet away from you.
Belly Check When you make an attack, if you have at least 1 creature in your stomach, you may spend 4 gastro points to slam a creature with your stomach in place of the attack. Make a melee weapon attack against a creature within 5 feet. On a hit, that creature is takes 3d6 + your Strength modifier Bludgeoning Damage, and is knocked prone.
Whipping Tongue. When you make an attack, you may spend 2 gastro points to instead lash out your tongue at a creature within 10 feet, forcing them to make a Strength saving throw. On a fail, they are pulled 5 feet closer to you and are grappled.
Starting at 15th level, when a creature within 5 feet of you regurgitates another creature, you can use your reaction to shove the creature back inside. Make a Strength(Athletics) check contested by the target's Strength(Athletics) or Dexterity(Acrobatics) check (their choice). On a success, the creature is treated as having failed a single Devour check against the other creature.
Starting at 18th level, when you Feed a creature to another unwilling creature, they cannot be regurgitated willingly. Additionally, when you feed a creature to a willing creature, they have Disadvantage on Strength(Athletics) checks made to struggle. Both of these effects last until the affected creature ends their turn more than 5 ft away from you.
Barbarians who take this path tap into their primal hunger, elevating their rage into a feeding frenzy. Followers of this path traditionally abstain from food, waiting to fully unleash their voracity on their foes, stuffing themselves to the brim with hostiles.
Starting at 3rd level, you gain immense control over your stomach. When you take the attack action, you may target a creature within your gut, clenching your stomach around them. This attack deals bludgeoning damage equal to 2d6 + your Strength modifier.At 6th level, the damage dealt by your Gastro Control feature is considered magical for the purpose of overcoming resistance and immunity to nonmagical attacks and damage, and has a +1 to both the attack and damage roll.At 10th level, this increases to a +2, and at 14th level, this increases to a +3.
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