Bolide

You hold your hand in front of yourself, conjuring within a magical bolide shard wreathed in flames. Make a ranged spell attack against a target in range. On hit, the bolide explodes, dealing a base of 1d4 fire damage. As it flies towards its target, it gathers more and more latent magical energy and heat. For every 10ft beyond the caster it travels, it gains 1d4 additional fire damage.

You can cast Bolide at higher levels. For every spell level above 1st, its range is increased by 30ft.