- Because of this card's strict Fusion Material requirements, you can use "Elemental HERO Prisma" or "Crystal Rose" to copy the name of "Gem-Knight Sapphire" and use them as Fusion Material instead.
- Or, search "Gem-Knight Sapphire" via "Unexpected Dai", "Fusion Conscription" or "Fusion Deployment".
- "Gem-Knight Lady Brilliant Diamond" can ignore Summoning conditions to Special Summon this card.
- This card's floating effect is best activated during your opponent's turn, using a Trap Card that Tributes this card or sends it to the Graveyard in other ways, so that it disrupts your opponent's attempts to go into a monster that cannot be targeted by this card.
- "Gem-Enhancement" (provided that you revive a "Gem-Knight" monster other than this card) and "Pyroxene Fusion" are archetype-specific ways to accomplish this without loss of card advantage.
- This card is a valid target for "Fusion Weapon".