Oozemaster

Lurking in dank caverns and horrid sewers, the Oozemaster is a wizard who has chosen to subject themselves to the living conditions of Ooze creatures to better study and understand them. Masters of corrosive and toxic magic, they also learn how to summon and command these Oozes, and when they have truly begun to master their abilities, they can even transform into Oozes themselves for a short period of time. Rare compared to other arcane traditions, these arcanists study not only the magical formulas of spellcasting, but also the unique environmental conditions around them, coming to ascertain the PH and acidity of fluids easily. At the apex of their mastery, they can summon and command any ooze creature, and they can transform into terrible ooze creatures while maintaining their ability to cast spells.

Servitors of the demon lord Juiblex first originated this arcane tradition, and it only emerged in recent times after many, many long years of testing and perfection. Therefore, there are not many wizards trained in this style to any high degree of high mastery. Yet this suits most of them just fine, as all of Juiblex's mentality is that of a slow, but assured creeping destruction, and the wizards who purvey this style all believe with certainty that their corrosive mastery and ooze manipulation will someday lead to a recognition of this tradition as a potent arcane style.

Corrosive Conjuror

2nd-level Oozemaster feature

At 2nd level when you accept this arcane tradition, you lean how to conjure a rather small Ooze being which can help you in many ways. You learn the Find Familiar spell and add it to your spellbook. Whenever you cast this spell, if you summon a creature that does not have a fly speed, you can choose to make that creature have the Ooze creature type instead of its other types. If you do, this creature can move through any space as small as 1 inch by 1 inch without squeezing and it gains resistance to bludgeoning, piercing, and slashing damage. Also, as an action on its turn, it may become any other creature the Find Familiar spell could conjure, as long as that creature does not have a fly speed.

Additionally, whenever you cast a spell that deals acid damage using Wizard spell slots you add 1d6 acid damage to the damage dealt. This damage improves as you gain in levels, increasing to 1d8 at 6th level, 1d10 at 10th level, and 1d12 at 14th level.

Caustic Expansion

6th-level Oozemaster feature

At 6th level, you learn the secrets of beckoning Ooze to increase near you. As an action, you expend a 1st-level or higher spell slot, and the creature you summoned with your Corrosive Conjuror feature transforms to become a Gray Ooze, assuming the statistics and action block actions of that creature for a number of rounds equal to your Wizard level before returning to its normal form. Any damage the creature sustained before transforming back to its normal form remains as damage dealt to the base creature, and if this reduces it to 0 hit points, that creature dissolves away into useless liquid.

Additionally, you learn the Tidal Wave spell and add it to your spell book. When you cast this spell, you may add magical acid damage to the types of damage it deals.

Lastly, the bonus damage from your Corrosive Conjuror feature improves to 1d8.

Slime Summons

10th-level Oozemaster feature

At 10th level, you learn to transmogrify creatures you summon into Oozes, and you can conjure forth unique Ooze beings, also. Whenever you cast a spell that conjures or summons creatures, such as the Summon Fey spell, you can replace the creature type of the summoned creatures with the Ooze type, and those creatures have resistance to bludgeoning, piercing, and slashing damage and each can move through a space as small as 1 inch by 1 inch without squeezing.

Additionally, as an action, you can expend a spell slot of 4th spell level or higher, and you summon your choice of a Black Pudding, a Gelatinous Cube, an Ochre Jelly, or a Slithering Tracker, and this creature appears in a space of your choice within 30 feet of you. You can command this creature to perform any of its action block actions as a bonus action on your turn, and this creature remains as long as you maintain your concentration, as if concentrating on a spell.

Lastly, the bonus damage of your Corrosive Conjuror feature improves to 1d10.

Mucoid Mastery

14th-level Oozemaster feature

At 14th level in this class, you have learned to become the very type of being you command and summon so easily and well. As an action, your body becomes a humanoid ooze as you take on an Ooze Form, and you gain the following benefits:

-Your creature type becomes Ooze.

-You gain resistance to bludgeoning, piercing, and slashing damage, and you are immune to critical damage.

-You can move through any space as small as one inch by one inch without squeezing, and you have a climb speed equal to your speed.

-You can inflict magical acid damage with your unarmed strikes by making a melee spell attack. If you hit, you deal 1d8 + your Intelligence bonus magical acid damage. You may perform grapple attempts or escape grapples using your Intelligence bonus instead of your Strength bonus for the duration of this feature.

You retain these benefits for a number of minutes equal to your Intelligence bonus, and you may use this feature twice before you must finish a long rest to use it again.

Additionally, you learn and add the Create Homonculus spell to your spellbook. When you assume the Ooze Form above, your homonculus also gains the same benefits of the Ooze Form for as long as you retain those benefits.

Lastly, the bonus damage of your Corrosive Conjuror feature increases to 1d12.