Zetronys
Awsome. And if you wanted for the lightning version lightning is just static charge built up from the friction of air molecules so in theory “rubbing” mana particles against each other could build up this charge and the catalyst could be when the mage or whoever tries to draw it in for a spell.
Zetronys:not a bad idea, but secret techniques are secret in the end, I can do that, but it would only be at a much later stage in the story, I can't see something similar with lightning, only if he used pure elementless mana