At 1st level this ability allows you to Engulf and consume organic and inorganic items and objects. You either store, break down for spell slots or refine and process(EX. ore to metal). You can consume a creature whose CR is within 1/2 your character level rounded up. After consuming your foe you gain 2 prime traits from its status charts. Ex. Spiders web walk. and you gain all vision and movement abilities that you do not have.
After analysis by great sage you gain any spell they had for which you have spell slots for and you also gain half of each level of spell slots they had.

While the creature is alive and engulfed rolls of 10 or higher on a d20 activate this effect prematurely.

• Stomach: Stores the predated target. functionally infinite, It can also store materials collected or created via Analysis. Items stored in the user's stomach are unaffected by time. 
• Mimicry: Reproduces the form and Skills of absorbed targets. Only available once the target has been fully consumed and Analyzed. most intrinsic Skills gained from a predated species can only be used at full capacity by taking the form of said species. For creatures larger than your size you must spend spell slots to compensate for missing mass. X number of spell slots equal to cr+1 per size category above your mass. This ability can be used in and out of combat, while in combat once per round you can change form as a bonus action.
• Isolation: Stores harmful effects incapable of being analyzed, neutralizing them and breaking them down into magical force.

• Analyze and Assess: Analyzes and assesses the target. Analysis takes 1 hour per cr of the consumed for each extra ability over the first 2 or 10 minutes per rarity level of item.
• Parallel Operation: Operates on any matter the user wishes to analyze, separating it from the regular thought process. Any process under Parallel Operation is affected by Hasten Thought and accelerated by a thousand times. Research takes less time as per the results of a roll on a 1d100 as percentile dice.  
• All of Creation: Provides full coverage of all non-concealed phenomenon. This taps into the world and provides answers to any questions asked of the great sage except those concealed. Ultimately the gm decides which info is available to great sage.
• Analysis: Analyzes and researches targets that are taken into the user's body. Lets the user create craftable items as with tools and workshops. If the required materials are present, allows the user to use a spell slot equal to the item's magic level to create a copy of it. Successful Analysis of the casting method allows the user to learn the target’s Skills and Magic. 

A superior version of Self-Regeneration. It's capable of quickly regenerating the body to its default state. If imbued into magical clothes or armor, it grants a self-repair function that enables a complete recovery of the clothing even "from scratch". Short and long rest restores lost limbs, bodyparts and as well as damage.

You are a slime,  you feel no pain. However you still take damage.

You are resistant to temperature related damage.(fire and ice, heat and cold immunity)

You gain immunity to poison, acid, and paralysis.

You are vulnerable to lightning, necrotic, and radiant.

As a slime you can move through 1 inch holes, cracks and crevices without having to squeeze. Unlike other slimes you do not store items in a physical location more a pocket dimension anchored to your body and thus do not lose carried items.

Your stomach is infinite and acts similar to the bag of holding, with a few minor differences, one you can carry 1500lbs in your stomach. Your stomach can analyze, copy, manufacture and refine and process whatever is inside it. You can restore a spell slot of 3rd level or below when you consume a magic item.

Engulfing A bag of holding is explosively dangerous to you, should you attempt to do so you must make a fortitude save at disadvantage or instantly die.

As a unique variant of slime, you are naturally weaker than most other creatures all attributes take a permanent -2 modifier.
You do not need sleep, to eat or use the toilet. You don't breath. You don't gain exhaustion levels, however in compensation your state is directly tied to your magic slots. When you use all your magic slots you will become slowly weaker and after a course of 1 hour will need to take a long rest. As a slime you are mute until you consume a creature capable of speech.

 Universal Shapeshift allows any parts of the body to be transformed into any parts of the bodies of species that the user can transform into. Multiple such partial mimicries, even of different species at the same time, is possible. However mass rules still apply and you cannot use those body parts to do any special features such as spells or attacks; you can use body parts to increase things like speed though.

Whenever you morph into a creature that you have consumed, you will look pretty similar to that creature but with a few differences. These differences tend to be connected to whatever colour of slime that you are, so if you are a blue slime then you would usually have something like blue scales or hair.

Being such a powerful slime, who is usually considered the weakest monster of all, other monsters will be much more willing to follow you. You now have a +4 to charisma checks on other intelligent monsters who have crs below yours and have a +2 for intelligent monsters with crs up to 3 above your character level. But, being a slime also comes with a lot of problems. People will often assume you are much weaker than you actually are and may even be aggressive towards you.

Slimes cannot age, so a slime can vary ages greatly.

You can be whatever alignment you want to.