Card Rules: Rulings powered by The Netrep API. 'Goblin of Greed' prevents discarding as a cost , but not as part of an effect. So 'Goblin of Greed' will stop 'Kuriboh' but not 'Mirage of Nightmare' or 'Graceful Charity'. If your opponent activates an effect and discards as a cost and you chain 'Call of the Haunted' to Special Summon 'Goblin of Greed' he doesn't stop the effect because the cost was already paid. [Re: Wicked-Breaking Flamberge - Baou] Sending 1 card to the Graveyard is a cost. This is not 'discarding' so it doesn't trigger 'Forced Requisition' and you can pay the cost even if 'Goblin of Greed' is in play. Passcode: 00425934 Set: Dark Revelations 1 ATK/DEF: 1000/1800 Card Number: DR1-EN227 Monster Type: Fiend Rarity: Common Attribute: Earth Card Text: As long as this card remains face-up on your side of the field neither player can activate an effect by discarding from his/her hand. Level: 4 Card Type: Effect Monster Name: Goblin of Greed Edition: Unlimited