"Firewall" Rating Score by ダイナソー紅月

Considering the time of its appearance, it seems that O'Brien's wall of fire was designed to be used in conjunction with his Volcanic.
Only the point that it can prevent the opponent's direct attack many times in one turn is quite tenacious and can not be said to be weak. Also, as one of its few strengths, it can prevent as many direct attackers as possible.
However, for some reason, attacks other than direct attacks cannot be prevented, and for some reason maintenance costs are required despite the narrow response range. ・・・I can't imagine it being strong enough to require a maintenance cost, even from the beginning of its appearance.
Moreover, the maintenance cost is quite painful at 500 LP.
In addition, this card has a drawback, it is necessary to remove his Pyro monster in his GY as the cost of the effect, but Pyro is a bad match for removal, and if you remove it blindly, you will instead lose your neck. You end up narrowing it down. Conversely, it can be used to exclude Pyro.
A weak and poorly matched card. With a little more finesse, it seems like it would be a pretty good card...
Just in case. If his Pyro monsters and categories that are compatible with removal appear in the future, the rating may change. However, the downside is that it is only for direct attacks and requires maintenance costs.