Card Tips:Number 21: Frozen Lady Justice
- To avoid losing an Xyz Material and 1000 ATK, you can Summon this card by using "Rank-Up-Magic Astral Force" on "Evigishki Merrowgeist" or "Number 101: Silent Honor ARK".
- You can further increase its ATK by using "Overlay Regen", "Overlay Eater" or "Overlay Capture".
- You can Xyz Summon this card on "Tiras, Keeper of Genesis" after the Battle Phase in which it was left with just one Xyz Material. Since "Tiras" would lose his last Material anyway during the End Phase, this is a very good way to summon this card. Since it'd have only 1500 ATK, it's best to summon it that way to clear a defensive wall, such as "Scapegoat's" tokens.
- As with "Number C5: Chaos Chimera Dragon", "Hazy Flame" Decks can make excellent use of this card, since they focus on Level 6 monsters and (through "Hazy Pillar") feature a strong emphasis on replenishing Xyz Material.
- This card can be used to great effect against a "Superheavy Samurai" deck.
- Use cards like "Zero Gravity", "Labyrinth of Nightmare" and "Stumbling" to change your opponent's monsters to Defense Position and destroy them with this card's effect.
- "Dododo" monsters like "Dododo Warrior", "Dododo Buster" and "Dododo Driver" can easily summon this card.
- Use "Overlay Eater", "Overlay Capture", and/or "Overlay Regen" to keep this monster's Xyz Materials high.
- If you have "Number 19: Freezadon" on the field when this card is summoned, it can use its Xyz Materials in replacement for this monster's, which will keep her power high and still be able to use her effect.
- If this card has run out of Xyz Materials, "Numbers Overlay Boost" can give it two more materials straight from your hand. This is very useful if you run out during your opponent's turn, which would otherwise leave this card as easy prey.
- "Number Wall" can protect this card from being destroyed, even if it runs out of Xyz Materials, keeping it safe until one replenishes "Frozen Lady Justice's" Xyz Materials.
