When your opponent takes life cards of damage, you may place a card in your discard pile under this Drill facedown. If you have 4 cards under this Drill in your Non-Combat Step, you may remove this Drill and any cards under it from the game to search your Life Deck for a level 3 Ally and place it in play at 3 power stages above 0.
I should inject the energy before it loses its purity.