honestly I don't really see a problem, it's fun trying to figure out when it's safe to Dissipate your faerie to get some extra damage in (although sometimes it's a bit too easy, like with the line mechanic in RubiEX)

if anything they need to buff Energy Drain to make this more important, or maybe make it give you a buff that powers up Energy Drain into a higher potency and AOE Energy Siphon