The Grand Ooze of Urnas: Exhalted (5e Creature)
From D&D Wiki
The Grand Ooze of Urnas: Exhalted
Tiny ooze (living construct), neutral good
Saving Throws Str +18, Dex +14, Con +16, Int +11, Wis +12, Cha +12
Legendary Resistance (3/Day). If The Grande Ooze of Urnas fails a saving throw, it can choose to succeed instead.
Humanoid Appearance. As a bonus action, the Ooze of Urnas can shift its body to appear as a Medium Humanoid without any change to it's stats. While in this form, it has the ability to use weapons. Its head has a white glowing "eye" and the rest of its body is an inky black.
Gigantification. The Ooze of Urnas can take 1 hour to begin a transformation where it will grow to become a gargantuan creature for 8 hours. After the 8 hours are up, the Ooze of Urnas will return to its sleeping state while also being unable to activate for approximately a month.
Sentinel. When The Ooze of Urnas hits a creature with an opportunity attack, the creature's speed becomes 0 for the rest of the turn. Creatures provoke opportunity attacks from The Ooze of Urnas even if they take the Disengage action before leaving their reach.
Acidic Form. A creature that touches the Ooze of Urnas or hits it with a melee attack while within 5 feet of it takes 21 (6d6) acid damage.
Amorphous. The Ooze of Urnas one can move through a space as narrow as 1 inch wide without squeezing.
Spider Climb. The Ooze of Urnas can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.
Speak with Oozes. The Ooze of Urnas can communicate with oozes as if they shared a language.
Regeneration. The Ooze of Urnas heals 18(5d6) hit points at the beginning of each of it's turns, if it still has at least 1 hit point left.
Acid Absorption. If the Ooze of Urnas takes Acid damage, it heals for half the amount of Acid damage it would've taken.
Magic Weapons. The Ooze of Urnas' weapons attacks are magical.
Magic Resistance. The Ooze of Urnas has advantage has advantage on saving throws against spells and other magical effects.
Ooze Nature. The Ooze of Urnas does not require sleep.
Artifact Nature. When the Ooze reaches 0 hit points, it doesn't die. Rather, it shifts back into a "sleeping mode" for until it is reactivated. It can only be forced into this "sleeping mode" if a creature the Ooze trusts casts a 9th level Dispel Magic the Ooze. For every day it is in this state, it heals 200 (80d4)
Multiattack. makes four attacks with either their Pseudopod or Acid Glob.
Pseudopod. Melee Weapon Attack: +18 to hit, reach 5 ft., one target. Hit: 55 (10d8 + 10) bludgeoning damage, plus 38 (8d6+10) acid damage.
Acid Splash. Ranged Weapon Attack: +18 to hit, reach 60/120 ft., one target. Hit: 38 (8d6 + 10) acid damage.
Melt (Recharging 5-6). Melee Weapon Attack: The Ooze of Urnas starts liquefying and creates a pool of acid in a 20 ft. radius of the floor they were on until the end of their next turn. They are still able to be attacked and targeted by spells, but melee attacks can only be made by creatures standing in this acid. Whenever a creature enters this pool or start their turn standing in the pool, they must make a strength saving throw with a DC: 20. On a fail, they are considered grappled, restrained, and take 53 (10d6 + 18) acid damage. On a success, they are not grappled, restrained, and only take half damage.
Harden. The Ooze of Urnas adds +8 to it's AC against one melee attack that would hit it.
The The Grand Ooze of Urnas: Awakened can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The The Grand Ooze of Urnas: Awakened regains spent legendary actions at the start of its turn.
Detect. The Ooze of Urnas makes a Wisdom (Perception) check.
Move. The Ooze of Urnas moves up its speed.
Attack. The Ooze of Urnas makes two weapon attacks.
Leach Slime. The Ooze of Urnas can use 1 Legendary Actions in order to make an attack roll against a creature within 5 ft. of it with a +14 to the attack roll. On a hit, the creature is considered Grappled and Restrained. The Grappled creature can make an Athletics or Acrobatics skill check against a DC of 20 in order to try to escape. The creature also at the top of it's turn takes 40 (10d6 + 10) piercing damage as serrated teeth are cutting into it's body.
Melt (Recharging 6). Using 2 Legendary Action. Melee Weapon Attack: The Ooze of Urnas starts liquefying and creates a pool of acid in a 20 ft. radius of the floor they were on until the end of their next turn. They are still able to be attacked and targeted by spells, but melee attacks can only be made by creatures standing in this acid. Whenever a creature enters this pool or start their turn standing in the pool, they must make a strength saving throw with a DC: 20. On a fail, they are considered grappled, restrained, and take 53 (10d6 + 18) acid damage. On a success, they are not grappled, restrained, and only take half damage.
Urnas is an ancient wizard of transmutation, through using transmutation, conjuration, and necromancy the wizard was able to create this ooze creature in the form of an orb. It appears to be a perfectly round orb with a pitch black color except for a single white dot, it has a texture similar to rubber or a slime. This slime has laid dormant for unknown amount of years, waiting to be activated by a weary adventurer. When the orb is activated, it'll take on a squishy humanoid shape and will have a personality similar to a small child or curious puppy. (it looks like Flubber)