Vital Conversion
Source
Tech Revolution pg. 35
As a reaction when you use a spell to deal damage to a creature within 10 feet of you, you can convert some of that creature’s vital energies into electrical power. One battery in your possession regains a number of charges equal to the half the damage dealt or twice the spell’s level, whichever is less.
Dragonscript
ID
e61cc0455ad3d30dc6d98e46