Life Strike

While Channeling, the Life Strike mod increases your Life Steal, i.e. converts weapon damage to health, but dramatically decreases Channeling efficiency.

Tips

 * Rage synergizes well with Life Strike by converting health damage to energy, which can be used to recover health via Channeling and vice versa. This combo works well for Warframes with high health and armor ratings, like Valkyr.
 * Life Strike works best with weapons that deal a large amount of damage per hit, like the Dragon Nikana or the Reaper Prime, as they are more cost-effective in energy relative to the amount of health restored per hit.
 * For more effective lifesteals, it is advised to deal high-damage melee attacks like Slide attacks and Finishers in order to regain more health per hit using the same amount of energy.

Trivia

 * Unlike most mods, the picture shows an Excalibur wearing the Pendragon helmet, his Immortal Skin, as well as a different color scheme. This is a rare instance of a mod depicting a non-default character loadout.  The other examples are Second Wind , True Punishment , Enduring Strike , Warrior's Grip, Quickening  and Corrupt Charge, all of which are channeling mods.

Lebensschlag