If you attack with submarineroid how much attack does it have?

Answer 1

Submarineroid has an original or starting ATK of 800. If you attack an opponent's monster with greater than or equal attack, Submarineroid, would be destroyed just like an other monster. Now, I think the answer to your question is this. When Submarineroid attacks your opponent directly with its effect, the card states This card can attack your opponent directly. When it does, any Battle Damage this card inflicts to your opponent becomes the original ATK of this card. So it will always inflict 800 damage. If you increase or decrease its ATK it will still inflict 800 damage. But if your opponent has no monsters and you directly attack your opponent, Sub wouldn't be attacking using its effect. So the damage inflicted to your opponent will be whatever its ATK is taking into account any increases or decreases in ATK. I hope I'm not going too far, but just to make sure it's understood, here's a scenario. Your opponent has a set monster and Messenger of Peace (MoP) on the field. MoP doesn't let monsters with 1500 or more ATK declare an attack. You have Submarineroid equiped with Axe of Despairmaking its ATK 1800. MoP will not let you attack with Sub because its ATK is over 1500. If MoP wasn't on the field and you attacked directly, you'd inflict only 800 damage. If you attacked the face-down monster you would compare Sub's 1800 ATK to the DEF of the monster to see if it is destroyed in battle. Hope this clears everything up!