I've been playing artificer with the Alchemist subtype, and my group is unsure of how aiming/hitting targets with items out of the satchel works.
As seen in the artificer class:
Alchemical Fire. As an action, you can reach into your Alchemist’s Satchel, pull out a vial of volatile liquid, and hurl the vial at a creature, object, or surface within 30 feet of you (the vial and its contents disappear if you don’t hurl the vial by the end of the current turn). On impact, the vial detonates in a 5-foot radius. Any creature in that area must succeed on a Dexterity saving throw or take 1d6 fire damage. This formula’s damage increases by 1d6 when you reach certain levels in this class: 4th level (2d6), 7th level (3d6), 10th level (4d6), 13th level (5d6), 16th level (6d6), and 19th level (7d6).
Do you need to roll to hit an AC? And how does that work with the area damage?
Do you roll to hit in an area?
Do you only roll the saving throws?
How does this work?