User blog comment:Guardian Fira/If there was a Banlist...?/@comment-26147696-20170520060352

Then you could also say the new DDW impact "Death Count ~Requiem~" would need to be on the limit list as you wins/lose the game after 3 turns of it being on the field, but there are way of countering stuff like that.

For Prism Dragons, Shadow Dive is a pane as they just go through the center.

Thunder Empire can be beat by using force rest cards.

And Black Dragons can lose to rush decks.

So no, just because some decks are tanky and hit hard, does not mean they cant be beat or are OP. Like Duel Jaeger "Revolted" or Hyakugan Yamigedo or any other older wall builds, they can lose.