So electric arc seems to be a popular cantrip with my players, due to how it can mop up weak monsters. I do have a question about its design, though.
As it stands, for 2 actions electric arc deals damage to 1-2 targets for d6 damage each at level 1, with a fairly normal saving throw against damage. But we currently lack a 1-action damaging cantrip. On top of that Heal, Harm, and Magic Missile have a really fun design space that doesn't seem to be widely implemented yet.
Is it just me, or could it be really fun to see something more like the following?
Electric arc
Casting: See below
Range: See below
Targets: See below
Electricity lashes from you, dealing 1d6 electricity damage. Each target must attempt a Reflex save, taking half damage on a success, no damage on a critical success, or double damage on a critical failure. The number of actions spent Casting this Spell determines its targets and range.
[[A]] Somatic casting The Spell targets one creature with a range of touch.
[[A]] Somatic casting [[A]] Verbal casting The Spell has a range of 30 feet and can target up to two creatures.
Heightening increases damage.
Heightened (3rd) Damage of 1d6 + your spellcasting modifier.
Heightened (5th) Damage of 2d6 + your spellcasting modifier.
Heightened (7th) Damage of 3d6 + your spellcasting modifier.
Heightened (9th) Damage of 4d6 + your spellcasting modifier.