[RPG] Double Range for Storm Sphere with Spell Sniper

dnd-5efeatsranged-attackspells

Spell Sniper says:

When you cast a spell that requires you to make an attack roll, the spell’s range is doubled.

Can I apply that to the part of Storm Sphere that says:

Until the spell ends, you can use a bonus action on each of your turns
to cause a bolt of lightning to leap from the center of the sphere
toward one creature you choose within 60 feet of the center. Make a
ranged spell attack.
You have advantage on the attack roll if the
target is in the sphere. On a hit, the target takes 4d6 lightning
damage.

The spell itself does not require the caster to make an attack roll. But there is the option to make a spell attack. I'm not sure if the Spell Sniper feat could be applied here.

Would the lightning attacks of the Storm Sphere benefit from the Spell Sniper feat?

Best Answer

Storm Sphere wouldn't benefit from the range increase provided by Spell Sniper.

Spell Sniper's first dot point specifically states:

When you cast a spell...

The lightning bolt that leaps from the center of the sphere and the subsequent attack roll is an effect that happens after the spell has already been cast and thus does not gain the double range benefit of Spell Sniper.