"Tornado Wall" Rating Score by みめっと

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.