Ancient Gear Golem (TLM-EN006) - The Lost Millennium 1st Edition Condition:Heavily Played Once per turn: You can

Once per turn: You can discard 1 DARK monster

You can only use this effect of "Mermail Abyssteus" once per turn

including drawing: They must discard 1 of those cards

except "Grapha

Ancient Gear Golem (TLM-EN006) - The Lost Millennium 1st Edition Condition:Heavily Played Once per turn: You canTypeMachine Effect Monster AttributeEARTH Level Rank8 ATK DEF3000 3000 Card TextThis card cannot be Special Summoned. When this card attacks with an ATK that is higher than the DEF of a Defense Position monster, inflict the difference as Battle Damage to your opponent's Life Points. If this card attacks, your opponent cannot activate any Spell or Trap Cards until the end of the Damage Step.