DnD 3.5 to 5e Spell Conversions: Acid Sheath

 

Acid Sheath

4th-level conjuration

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• Casting Time: 1 action
• Range: Self
• Components: V, S, M (a handful of fire ants)
• Duration: 10 minutes
• Classes: Sorcerer, Wizard

You enclose yourself in a fluid sheath of acid for the duration. You can end the spell early by using an action to dismiss it. This sheath grants you resistance to acid damage and any creature that touches you or hits you with a melee attack while within 5 feet of you takes 2d4 acid damage. If you are in a grapple, other creatures in the grapple take acid damage once per round at the beginning of their turn.

In addition, your melee weapon attacks deal an additional 1d4 acid damage.

At Higher Levels: When you cast this spell using a spell slot of 5th level or higher, the damage you deal when a creature touches you or hits you with a melee attack increases by 1d4 for each slot level above 4th and the additional damage dealt by your melee attacks increases by 1d4 for every two slot levels above 4th.

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One of the spells from my conversions of the entire Dungeons and Dragons 3.5 Spell Compendium into 5e and published in Spells of Antiquity. Even more acid damage on the agenda here, with this one intended to be cast when you're planning on going up close, or at least someone anticipating the enemy to get into melee range.