Arcane Wednesday - Storm Sphere: https://www.dndbeyond.com/spells/storm-sphere
This 4th-level Evocation spell lets you create three effects with a single spell. the first effect is a spherical area with a 20-foot radius that blows hard wind and damaging hail around to deal 2d6 damage to every creature in it. The second effect is non-damaging, and it that is a disadvantage on perception checks to hear anything within 30 feet of the sphere (interesting that it says within 30 feet of the sphere, not within 30 feet of the target point. The final effect is choosing a single target within 60 feet of the center and having the sphere shoot a lightning bolt at them for 4d6 lightning damage.
This spell is thus best in an area where the battle is somewhat confined and the enemies can’t freely move away from the target area. It’s also a concentration spell and the effects can last up to a minute.
What is the best example you have seen when a player or DM used this spell? How would you use this spell in a battle as a caster PC, or how would you use this spell as a DM to challenge your players?