Returns all set Spell/Trap card to the Hand, when this monster was sent from the Field to the Graveyard.
Strong DEF stats.
Must use at least 1 Aqua-type monster as Fusion material.
Being able to return all set Spell/Trap card is a powerful effect to eliminate possible counter-plays your opponents can use to protect themselves from your monsters’ onslaught.
If you use Hey, Trunade in your Gem-Knight Deck, you can choose not to use this monster’s effect instead.
You are most likely required to use Polymerization to Fusion Summon, therefore you can use these cards to support your Fusion actions. Fusion Recycling Plant can recycle 1 fusion material monster to your hand, and also search for Polymerization from your deck. King of the Swamp can be treated as 1 fusion material required for Fusion Summon, and at the same time it also can be used to search 1 Polymerization from your Deck. Fusion Sage can search 1 Polymerization from your deck. Defusion is a powerful follow-up card when you attack with your Fusion monster, as it can dissolve the Fusion monster to resummon the Fusion materials from your Graveyard, enabling you more attack options. Fusion Reserve allows you to add 1 of the Fusion materials listed on the Fusion monster to your hand, and add 1 Polymerization from your Graveyard to your Hand.
Gem-Knight Lady Brilliant Diamond can be used to send Gem-Knight Amethyst to the Graveyard in order to Special Summon another Gem-Knight Fusion monster to the Field, therefore Gem-Knight Amethyst’s effect activates and returns all set Spell/Trap to owner’s Hand. You can banish Gem-Knight Amethyst to recover Gem-Knight Fusion card from your Graveyard to your Hand, then use D.D.R - Different Dimension Reincarnation to Special Summon Gem-Knight Amethyst from the banished zone to your Field.