Gandennia's Beloved Valet (TTT-050 N) [Thoth of the Trinity]

Whenever damage is dealt to this card by a source you control >>> Target resonator becomes darkness until end of game. This ability triggers only once per turn. When this card is destroyed >>> Target a resonator that shares an attribute or race with this card. You may search your deck for a card named "Restraints of Empathy" and put it into the field, added to the chosen target. If you do, shuffle your deck.