Gem-Knight Aquamarine is a Ultra Rare Fusion Monster card from Yu-Gi-Oh! (Battles of Legend: Monster Mayhem, BLMM). Current market price: $0.14.
Ultra Rare
Battles of Legend: Monster Mayhem (BLMM)
Card Text
"Gem-Knight Sapphire" + 1 "Gem-Knight" monster
Must first be Fusion Summoned with the above Fusion Material Monsters. If this card attacks, it is changed to Defense Position at the end of the Battle Phase. When this card is sent from the field to the Graveyard: Target 1 card your opponent controls; return that target to the hand.
