I had honestly forgotten about Tidal Pulse (I wrote it off rather early as "extremely inefficient", and never looked back at it). That one might do the trick, but I haven't tested it yet, what with being out of health from a few failed forays...
Fireball and Energy Pulse isn't of that much use though; if you're out in the open, the sprites tend to swarm you and quickly drain your health to nothing, so you want something that runs around edges, which I believe neither do.