Melffy Puppy (ROTD-EN019) - Super Rare - Rise of the Duelist Number_DUOV-EN099 A high-density heat sink is

A high-density heat sink is built into the knee

and others

using monsters from your hand or your side of the field as Fusion Materials

after damage calculation: You can banish that opponent's monster

Card TextIf this card in your possession is destroyed by your opponent's card (by battle or card effect) and sent to your GY: Shuffle this card into the Deck

Melffy Puppy (ROTD-EN019) - Super Rare - Rise of the Duelist Number_DUOV-EN099 A high-density heat sink isTypeBeast Effect Monster AttributeEARTH Level Rank2 ATK DEF300 100 Card TextIf your opponent Normal or Special Summons a monster(s) (except during the Damage Step), or if an opponent's monster targets this card for an attack: You can return this card to the hand, then you can Special Summon 1 Level 2 or lower Beast monster from your Deck, except "Melffy Puppy". During your End Phase: You can Special Summon this card from your hand. You can only use