Steamroid

Type: Effect Monster
Monster Type: Machine
Attribute: Earth
Level: 4
Attack: 1800
Defense: 1800
Rarity: Common

Description: If this card attacks your opponent's monster, increase the ATK of this card by 500 points during the Damage Step only. If this card is attacked by your opponent's monster, decrease the ATK of this card by 500 points during the Damage Step only.