Battles of Legend: Monster Mayhem

3 Level 4 monsters
When this card is Special Summoned: Negate the effects of all other face-up Xyz Monsters currently on the field. You can target 1 other face-up Xyz Monster on the field; until the End Phase, this card's name and original effect become the same as that monster. You can only use this effect of "Number 69: Heraldry Crest" once per turn.

Number 69: Heraldry Crest

Alliance Insight

Target any number of face-up monsters your opponent controls; those monsters' names become "Unknown". During your End Phase, if you control a Psychic Xyz Monster and this card is in your GY: You can Set this card, but banish it when it leaves the field. You can only use this effect of "Flash of Heraldry" once per turn.

Flash of Heraldry

5 Level 4 monsters
Cannot be destroyed by battle or card effects. Once per turn (Quick Effect): You can detach 1 material from this card, then target 1 face-up monster your opponent controls; that monster's name becomes "Unknown". Negate any "Unknown" effects activated by your opponent.

Number 69: Heraldry Crest - Dark Matter Demolition

4 Level 4 monsters
You can also Xyz Summon this card by using a monster you control whose original name is "Number 69: Heraldry Crest". (Transfer its materials to this card.) When your opponent activates a monster effect on the field, or an opponent's monster declares an attack (Quick Effect): You can Special Summon from your Extra Deck, 1 "Number 69: Heraldry Crest - Dark Matter Demolition" by using this face-up card you control as material, then destroy that opponent's monster. (This is treated as an Xyz Summon. Transfer this card's materials.) You can only use this effect of "Number 69: Heraldry Crest - Shatter Stream" once per turn.

Number 69: Heraldry Crest - Shatter Stream

Legacy of the Valiant: Deluxe Edition

4 Level 5 monsters
When an opponent's monster declares an attack: You can destroy all cards your opponent controls. If this card has "Number 69: Heraldry Crest" as an Xyz Material, it gains this effect.
● Once per turn: You can detach 1 Xyz Material from this card, then target 1 face-up Xyz Monster your opponent controls; this card gains ATK equal to that face-up monster's original ATK, and if it gains ATK this way, this card's name becomes that monster's, and it gains that monster's original effect. These effects last until the End Phase.

Number C69: Heraldry Crest of Horror

Number Hunters

When an effect of your opponent's Xyz Monster is activated by detaching its own Xyz Material(s): Negate the activation, and if you do, destroy it.