Yugioh: if u have black stego set and then put down heart of the clear water with it its invincible. unfair?

1) When you say set, you are referring to it being in face-down defense, which is impossible to equip card to. However, I will assume you just mean ';on the field, face-up';.





2) No, it is not invincible. Battle and TARGETING effects will not destroy it. NON-TARGETING effects will still get it though. Mirror Force? Kills it. Lightning Vortex? Kills it. Fissure? Kills it. Besides, even if it can't be destroyed by battle, if the opponent attacks with a monster with trample/piercing, he will still do damage to you.Yugioh: if u have black stego set and then put down heart of the clear water with it its invincible. unfair?
Stego is not in reality as black as it is gone