Card Tips:Gem-Knight Sardonyx
- This card can be searched by "Gem-Knight Phantom Quartz", "Absorb Fusion", "Gem-Armadillo", "Bonfire", "Infernal Flame Banshee", "Aussa the Earth Channeler", "Woodland Archer", "Gemini Ablation", "Chemicritter Carbo Crab", "Gemini Soldier", "Aussa the Earth Charmer, Immovable", "BOXer", "Frontline Observer", "Summoner Monk", "Vampire Dragon", "Soul Rope", "Resonator Engine", "Rescue Ferret", "Witch of the Black Forest", another copy of "Gem-Knight Sardonyx", and other generic searchers.
- You can revive this card when you discard "Gem-Knight Obsidian".
- This card can search for "Gem-Knight Fusion".