Another idea I had for an Equivalent Power, for Electricity Manipulation: Fire and Ice Manipulation's i24 Sustain powers are their aura abilities, changing them from expensive toggles to run to free debuff/damage auras that give nice buffs to yourself as well. Electricity has a damage aura as well, in Lightning Field, but it was Lightning Clap that became the Sustain ability instead. I think the reason for this is that Lightning Field drains endurance, and putting a +Recovery on it would let you slot for both at once with end mod enhancements, which could potentially be too good. They couldn't remove the end drain, because players that used Lightning Field for that would cry foul. This is a perfect place to put an Equivalent Power: Overcharged. It's a damage aura like Lightning Field, same damage, but no end drain. Instead, it increases Recovery and Regeneration. Lightning Clap comes back as an Equivalent Power for Force of Thunder. This set of powers would be a little different, in that taking one would lock out two other powers instead of just one. You can have Force of Thunder and Lightning Field, or Overcharged and Lightning Clap; you can't combine Force of Thunder and Overcharged or Lightning Field and Lightning Clap.