Hero Signal is a Super Rare Trap Card card from Yu-Gi-Oh! (Ra Yellow Mega Pack, RYMP). Current market price: $0.07.
Super Rare
Ra Yellow Mega Pack (RYMP)
Card Text
When a monster you control is destroyed by battle and sent to the Graveyard: Special Summon 1 Level 4 or lower "Elemental HERO" monster from your hand or Deck.
