- Since "Guard Penalty" can only replace itself, it merely serves as Deck filler, making the player get through their Deck quicker. Chaining it to cards like "Mystical Space Typhoon" can result in the opponent losing a card at no loss to the player. However "Jar of Greed" is much less situational and can be used to the same effect, although as a trap, it is a slower and more vulnerable alternative.
- Cards which can be used to meet "Guard Penalty's" requirement include "Black Stego", "Submarineroid", "Little-Winguard", "Spear Dragon", "Goblin Attack Force" (and similar monsters), "Crystal Beast Emerald Tortoise", "Lyla, Lightsworn Sorceress", "Goblindbergh", "Karakuri" monsters and monsters that flip themselves face-down.
- You can select one of your own monsters, switch it to Defense Position and then draw 1 card.
- This card works well with "Stumbling".
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