During Your End Phase (Lv. 1-2): Using the Cores currently on your Field to pay for its Summoning Core Cost, you may Summon one 3-Cost or lower "Nightling" Attribute Spirit from your Trash to the Field. During Your Draw Phase (Lv. 2): By choosing not to draw a card, you may return one "Nightling" Attribute Spirit from your Trash to your hand.