Tornado Wall →Used Deck

A defensive trap that has effects related to Umi used by Kajiki in the original Battle City arc.
When "Umi" exists, it has the effect of reducing any battle damage you receive to 0, and the old text was written in such a way that it only dealt with battle damage from attacks from the opponent, but now when you attack from yourself However, it is specified that the battles damage received will be 0.
However, if Umi is no longer on the field, the effect will not be applied, and it will immediately self-destruct due to the effect that does not activate, so the risk of losing 2 cards due to single removal effects is quite severe.
It's an unexpectedly strong effect that you won't be defeated by battle damage just by putting out two cards and leaving them alone, but no matter how hard you put back peeling in the main Deck, if you include EX monsters, there are some ways to deal with it. is prepared, and it would be unreasonable to stick to the library out with this.
If you want to use it as a safe self-destruction card without taking battle damage, there is also Spirit Barrier, and it seems better to think that it can be used both offensively and defensively.

Comprehensive evaluation: Useful if there are many effects that separate monsters from the field.
Since 《Spirit Barrier》is easier to use if there are monsters, will it be used assuming that there are no monsters?
Is it possible to use 《Umi》and remove 《Flyfang》repeatedly, or use 《Forgotten Temple of the Deep》together?

Sea support card. It might help if you pin it with her deck that uses the sea.

Now that there are many removals, the risk of being defeated together is high, and 0 damage is a nice effect, but it doesn't seem to be a priority.

It's difficult to use as it is, but when combined with the newly released "Dive Sea Surprise", it becomes quite annoying. Due to the effect on the other side, even if you exclude a monster, you can reduce the battle damage to 0, and you can also prevent this card's weak point, "Sea", from being destroyed and becoming a 1:2 exchange. However, since it's weak against things other than destruction, it's just a good match.

It's my favorite card.
I remember using it in conjunction with Fisherman in the past.
Now that there are more cards that can be treated as Field Search and Umi, it should be easier to set combos than before.
It would have been better without the last sentence~

The damage becomes 0, but naturally the monster is destroyed.
If the sea is destroyed, it will be destroyed along with it, so it is also a problem that it will be exchanged 1:2 by the cyclone. It's not that you can't use it, but it's a card that is subtle even if you use it.

So-called "weak if you use it, but strong if your opponent uses it" card
It's hard to think of 0 damage as normal, sir.

It's unobtrusively strong, but it's too fragile as a rock card to self-destruct when the "sea" is destroyed. There's also 《Gravity Bind》that goes well with WATER, so it's a bit subtle.

Cards that negate battles damage.
It's a troublesome effect, but the problem is that if the sea is destroyed, this card will be destroyed as well.
It doesn't work well with cards that cost the sea, so it's hard to use as a defensive card.

If you put only one copy and activate it at the same time when Gravity Bind comes, you can manage to use it, but it's a very subtle piece.

In addition to being troublesome to maintain, it is also fragile as a combo because it collapses when the sea is divided.
Also, since it can't prevent battle destruction, it's a delicate defense card, so I think it's much better to use other general-purpose lock cards.

Sober.
It might be a good idea to try using Sea Deck.

In the old days, it was one of the Atlantis rock cards that you see quite often.
Today, cyclones and hurricanes clear it away.
Also, without the sea, it is completely useless and can be an accident factor.
It's strong once it's decided.

0 damage is moderately strong.
There are a lot of Sea Supports, and in case of emergency, you can just use Codarus or Daedalus as a cost, so it's a card that you can bring to your advantage.

A card that can be activated when there is an ocean on the field, and has the effect of reducing battles damage to 0 as long as the ocean is present, and self-destructing when the ocean is gone.
I thought it would be a bit of a hassle to use it, but in reality, the combo of two permanent face cards is extremely fragile. How can you trust a defense that is both difficult to decide and fragile?
Sure, a complete battle damage negate is extremely nasty, but I have to say it's fragile to break down with a single Spell Trap removal of some kind.

Without the sea and Atlantis, it doesn't work.
Other cards are prioritized, but you can't say it's weak.

Combo with 《Field Barrier》.

It's a hassle to maintain, but it's nice that the suicide attack doesn't do any damage.
But there are even more versatile Gravity Binds...

It's troublesome when used.
However, it can also lead to accidents on the side of the user.

Because it's plain strong. yes.
0 damage to myself is too strong.
Well, it ends with the destruction of the sea...