- This card can be searched by "Single Purchase", "Temple of the Kings", "Transmodify", "Soul Rope", "Resonator Engine", "Vampire Dragon", "Summoner Monk", "Dragunity Corsesca", "Magician's Circle", "Arnis, the Empowered Warrior", "Dragodies, the Empowered Warrior", "Spellbook Star Hall", "The Grand Spellbook Tower", "Mystic Tomato", "Dark General Freed", "Creeping Darkness", "Chaos Zone", "Dark Renewal", "Dark Horizon", "Startime Magician", "Lemon Magician Girl", "Ebon High Magician", "Magician Navigation", "Unpossessed", "Familiar-Possessed - Lyna", "Gravekeeper's Recruiter", "Gravekeeper's Nobleman" and "Gravekeeper's Spy".
- Use this card's effect on "Spirit Reaper", Cloudians or "Berserk Gorilla". They will be destroyed, causing a replay, possibly allowing for a direct attack.
- Gravekeeper's monsters tend to have low ATK for their Level, and even with "Necrovalley" seldom break 2000 ATK. However, many high-Level monsters have DEF disproportionate to their ATK and are easily destroyed when shifted to Defense Position by this card. Alternately, you can use it to easily destroy highly defensive monsters like "Destiny HERO - Defender" and "Labyrinth Wall" and cause damage at the same time.
- Though it is mostly just a deck filler, you can get an extra card out of using "Guard Penalty" by using this card.
- You can use this card to switch an opponent's Blackwing or Lightsworn monster to Defense Position, preventing them from using "Blackwing - Kalut the Moon Shadow" or "Honest" to save their monster.
Traditional Format
- This card can be searched by "Spellbook of Judgment", "Sangan", "Last Will" and "Witch of the Black Forest".