Ancient Gear Golem (Red) [DL18-EN004] Rare Elemental Energy you must Tribute 1 Dragon-Type

you must Tribute 1 Dragon-Type monster on your side of the field

and if you fo

Set: Dark Revelation Volume 4 Card type: Effect Monster Rarity: Secret Rare Attack: 200 Defense: 700 You can Tribute this card to Special Summon 1 "Blue-Eyes White Dragon" from your hand

Trap or Monster Card)

Ancient Gear Golem (Red) [DL18-EN004] Rare Elemental Energy you must Tribute 1 Dragon-TypeSet: Duelist League Promo Card type: Effect Monster Rarity: Rare Attack: 3000 Defense: 3000 This card cannot be special summon. When this card attacks a monster in defense mode, if this card''s attack strength is higher than that monster''s defense strength, do battle damages to your opponent equal to the difference. When this card attacks, your opponent cannot activate and Magic or Trap cards until the end of damage step.