DnD 3.5 to 5e Spell Conversions: Arc of Lightning

 

Arc of Lightning

3rd-level evocation

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• Casting Time: 1 action
• Range: 30 feet (100 foot line)
• Components: V, S, M (two small iron rods)
• Duration: Instantaneous
• Classes: Sorcerer, Wizard

Choose one creature or object in range and one other creature or object within 100 feet of the first target. A bolt of electricity to arcs between the two targets. Both targets and any other creatures in a 5-foot wide line between those two creatures must make a Dexterity saving throw. A creature takes 8d6 lightning damage on a failed save, or half as much damage on a successful one. The lightning ignites flammable objects in the area that aren’t being worn or carried.

At Higher Levels: When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot above 3rd.

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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. This one is quite a bit like lightning bolt, only instead of a bolt straight from the caster, you get to choose a pair of creatures to zap between.