[LV1][LV2][LV3] When you summon a "Dark Snake" spirit, draw 1 card from your deck. [LV1][LV2][LV3] (Each Player's Attack Step) When you exhaust a "Dragon" spirit you control, move a core from an opposing spirit to their reserve. [LV2][LV3] (When Destroyed) Return all spirit cards with "Dragonaga" in the name from your trash to your hand.