Essence of TheGreat Eater

A humble bite sized vial with no cap, looking at it you instinctively know that to gain its power you must eat the vial itself. Don't worry, when you attempt to gulp the vial down it will go down smoothly.

• Invincible Eater: Your body is an invincible eating machine, nothing you eat can harm you. You can chew on nuclear bombs, you can gulp down black holes, and you can digest poisons most terrible, and you'd be fine. Regardless of the thing you put in your mouth, if you put it in your mouth then you are safe from it.

• Great Swallower: Your mouth, throat, stomach, and digestive system as a whole are all enhanced. Whenever you try to swallow something the space will bend and your mouth will swell in size, until you can swallow your target whole. You might be bloated in a fridge shape if you try your power on a fridge right after getting it, but over time your body will learn to bend space better and let you move even after swallowing a whole train.

• The Big Biter: When swallowing isn't enough you need to bite things into pieces, and your bite is similarly enhanced. Whenever you try to bite your jaws will have the combined mass of all the things you've eaten, collapsing together like an inevitable crash. Coincidentally your lips and tongue are enhanced too, to better manipulate what you bite, thus making a great kisser.

• Assimilator: Whatever you eat, you become. Their powers, abilities, and properties all become yours. Ate an enchanted flute that plays itself masterfully? You'll gain the ability to transform your flesh into the flute's material, turn your limbs or whole body into a flute, make the sound of the flute from your mouth, and gain the skill to play the flute masterfully. Or you ate a smartphone, and, well, you'll gain all of its capabilities. From making calls mentally to creating a flashlight from any part of your body, to using the calculator automatically, to mentally playing the games whenever you feel bored.

• To clarify, if you do not know how something works then you won't be able to use it. If you don't know how to read and write then you won't be able to use the internet. If you don't know that fish breathe through their gills then you won't gain the ability to breathe underwater. If you don't know how to wipe with the three seashells then they won't be anything more than seashells to you. However over time the items you eat become more 'your', thus your affinity with them increases. This allows you to use them more flexibly, gain an intuitive understanding of how they can work, and a higher rewards when training their abilities.

• To increase your connection with the items you ate you must either wait a long time, eat more of the same, or transform into the item in question.

• You are also capable of utilizing the shapeshifting to create clones of what you ate, the process is similar to growing a nail, and ripping the grown clone from your skin is similar to clipping your nails. Or utilizing the shapeshifting to grow your size into a giant, of the same size, mass, and combined durability of all the things you've eaten since taking this Essence.

• You can train the abilities you gain from the items you ate without a limit, from a humble vacuum cleaner to a black hole level of sucking force. From a fridge level of cooling to absolute zero in an instant. There is no limit neither to the abilities you gain from the items you eat, nor to the innate powers this essence gives, for you are the Great Eater.