Guardian Grarl is a Rare Effect Monster card from Yu-Gi-Oh! (Dark Revelation Volume 1, DR1). Current market price: $2.47.
Rare
Dark Revelation Volume 1 (DR1)
Card Text
Cannot be Summoned unless you control a face-up "Gravity Axe - Grarl". If this is the only card in your hand, you can Special Summon it (from your hand).
