Caustic Sphere

2nd-level conjuration

Casting Time:1 action

Range:120 feet

Components:V, S, M (a pinch of powdered alum, niter, and sulfate)

Duration:Concentration, up to 1 minute

A glowing green orb flashes from your hand to a chosen point within range for the duration. When the spell ends, either because your concentration is broken or because you decide to end it, the orb ruptures into a cloud of acid. Each creature in a 10-foot-radius sphere centered on that point must make a Dexterity saving throw. A creature takes 2d6 acid damage on a failed save or half as much on a successful one.

If at the end of your turn the orb has not yet ruptured, the damage increases by 1d6 (maximum 1d6 per caster level).

If a creature enters a square adjacent to the greenish orb or touches it, the creature must make a Dexterity saving throw. On a failed save, the spell ends immediately, causing that orb to rupture.

On a successful save, the creature can pick up and throw the orb up to 40 feet. When it strikes a creature or a solid object, that orb immediately ruptures.

At Higher Levels: When you cast this spell using a spell slot of 3rd level or higher, you create one additional orb for each slot level above 2nd. You can choose to trigger individual orbs to rupture.