ダークエルフの双子 マーレ is a Weiß Schwarz card from プレミアムブースター 原作 オーバーロード OVL/SE54-38. Compare listings from Singapore Weiß Schwarz sellers on CardJio, then jio them on WhatsApp.
【AUTO】 When this is placed on stage from hand or by the AUTO effect of {1/0 Aura - 28}, you may Heal 1. 【AUTO】 {CX Combo} [(2) Discard 2 cards] When this attacks, if you have the Bar CX in your CX Area, you may pay cost. If you do, deal 2 damage to your opponent, and this turn, this gains the following ability, "【AUTO】 When this card's battle opponent is Reversed, you may send that character to Clock."
This card was printed in Japanese only; the English text above is an unofficial community translation.