Caustic Strike

2nd level evocation

• Casting Time: 1 bonus action
• Range: Self
• Components: V, M (a weapon covered in vinegar)
• Duration: Concentration, up to 1 minute

The next time you hit a creature with a weapon attack before this spell ends, the weapon is coated by acid. The attack deals an extra 2d4 acid damage to the target and they are covered in acid for the spell's duration or until a creature uses it's action to scrape or wash the acid off itself or another creature. A creature covered in the acid takes 1d4 acid damage at the start of each of its turns.
At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the initial damage increases by 1d4 for each slot level above 2nd.
Classes: Artificer, Ranger, Sorcerer, Wizard

Liquid Acid Coating

3rd level conjuration

• Casting Time: 1 action
• Range: 60 feet
• Components: V, S, M (lemon juice)
• Duration: Concentration, up to 1 minute

You conjure a viscous acid that coats a weapon or suit of armor made of metal, wielded or worn by a creature that you can see within range. The target must make a Dexterity saving throw or take 4d4 acid damage on a failure, and their weapon or armor is coated by the acid. On a success, the target takes half as much damage.
Until the spell ends, on subsequent turns while the creature is wielding or wearing the weapon or armor coated in acid they take a 1d4 penalty to attack rolls made with that weapon, and attacks made against them gain a bonus equal to a roll of a 1d4 while they are wearing that armor. Additionally, you may use your bonus action to deal 2d4 acid damage.
Nonmagical weapons or suit of armors made of metal coated by the acid for the full duration of the spell are destroyed as the acid corrodes them.
At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, both instances of damage increase by 1d4 for each slot level above 3rd
Classes: Artificer, Druid, Sorcerer, Wizard

Acid Rain

4th level evocation

• Casting Time: 1 action
• Range: 150 feet
• Components: V, S, M (crushed tomatoes)
• Duration: Concentration, up to 1 minute

A storm of acidic rain falls in a 20-foot-radius, 40-foot-high cylinder centered on a point within range. when a creature enters the area for the first time on a turn or starts its turn there, it must succeed on a Dexterity saving throw or be covered in the acid for the spell's duration or until a creature uses its action to scrape or wash the acid off itself or another creature. A creature covered in the acid takes 8d4 acid damage at start of each of its turns. Any nonmagical objects made of metal that remain in the cylinder for the duration of the spell are destroyed.
Classes: Artificer, Druid, Sorcerer, Wizard

Corrosive Devourer

4th level transmutation

• Casting Time: 1 action
• Range: Touch
• Components: V, S, M (orange juice)
• Duration: 8 hours

You alter the physiology of the creature you touch, as it grows a toothy maw and its stomach acid is altered. For the duration, the target gains a natural weapon in the form of a bite attack that deals 1d4 piercing damage and 1d4 acid damage. The natural weapon is considered to be magical.
In Addition, the target can consume inorganic matter such as various metals, ores, and other minerals. Organic matter that might be hazardous otherwise such as rotting meats, mold, and disease stricken food. The target may still extract nutrition from them, and the target is immune to any poisons and diseases they consume this way.
Classes: Artificer, Druid, Sorcerer, Wizard

Hungry Maw

5th level conjuration

• Casting Time: 1 action
• Range: 60 feet
• Components: V, S, M (the gizzard of a worm)
• Duration: Concentration, up to 1 minute

You conjure a huge maw that you send at a creature you can see within range. You attempt to send the target to an extra dimensional space that mimics the stomach of a gargantuan worm. The target must make a Charisma saving throw or take 4d8 piercing damage and is teleported into the extra dimensional space.
The target is blinded and restrained while inside the space, and at the end of each of their turns they must make a Charisma saving throw or take 2d8 acid damage on a failure. The target reappears in the space it left or in the nearest unoccupied space if that space is occupied on a success.
At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, you can target one additional creature for each slot level above 5th.
Classes: Druid, Sorcerer, Warlock, Wizard

Ooze Transformation

7th level transmutation

• Casting Time: 1 bonus action
• Range: Self
• Components: V, S, M (crystallized ooze worth 500 gp)
• Duration: Concentration, up to 1 minute

Your body is coated by green ooze as you grant yourself an offensive and defensive coating of acidic ooze. You gain the following benefits until the spell ends:

• You are immune to Acid damage
• You are immune to the Prone condition.
• Amorphous Form. You can move through a space as narrow as 1 inch wide without squeezing.
• Blindsight. You have blindsight with a range of 30 feet. Within that range, you can effectively see anything that isn't behind total cover, even if you're blinded or in darkness. Moreover, you can see an invisible creature, unless the creature successfully hides from you.
• Pseudopod shot. When you cast this spell, and as a bonus action on subsequent turns for the duration, you can make a ranged spell attack at a creature within 60 feet of you. On hit, the target takes 4d8 acid damage, and the next attack roll made against this target before the end of your next turn has advantage.