Soul Drain

Details

 * Usually restores 10% health.
 * If an enemy is KO'ed, it procs a buff named "Devoured Soul" which restores an additional 30% health.
 * You will still get Devoured Soul if the enemy dies from a follow up attack.

Patch Notes
October 16, 2014 Patch Notes
 * Bug & Balance Fixes
 * Fixed an issue with Satana's Soul Drain not healing properly when defeating an opponent