Flash of Heraldry is a Super Rare Spell Card card from Yu-Gi-Oh! (Alliance Insight, ALIN). Current market price: $0.11.
Super Rare
Alliance Insight (ALIN)
Card Text
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.
