Dragonmaid Ernus (BLMM-EN055) - Battles of Legend: Monster Mayhem 1st Edition

Cannot be destroyed by card effects while you control a Fusion Monster. You can only use each of the following effects of "Dragonmaid Ernus" once per turn.
• (Quick Effect): You can discard this card; Special Summon 1 Level 4 or lower "Dragonmaid" monster from your hand.
• At the end of the Battle Phase: You can return this card to the hand, and if you do, Special Summon 1 Level 2 "Dragonmaid" monster from your hand.