Immortality (Nightling): If this Spirit Card is in your Trash, you can summon it to the Field when one of your Nightling spirits is destroyed. [LV1][LV2][LV3] (When Summoned) By discarding 1 burst you set, send 3 cores from opposing spirits to their reserve. [LV1][LV2][LV3] While you have 3 or more lives, treat this spirit as LV3.