Unban and Ban

If you could unban any card and ban any card, which ones would they be and why?

Ban: System Down

Reason: This card is specially designed to counter Cybers, an archetype not very relevant to the meta game. This card is like Crush Card Virus, in that it has a small price to pay, yet has a huge impact against your opponent, removing from play everything when the only card that moves multiple banished cards back to the grave is Burial from a Different Dimension, a card that is currently at 1 and Cybers may not be running this card.


Unban: Brain Control

Reason: This card is supposedly banned because it has too low of a cost and makes an xyz, but to me, it seems like it's only banned because it's a good card for Goat Control, a deck that has seen the banlist for quite a while. Now, with Goat Control being dead, this card isn't really that bad. It would only do the same thing that Mind Control, Enemy Controller, and Snatch Steal do. It would get rid of a big monster and set your opponent's plan back. Also, Big Eye is at three, yet it does the same thing and is easier to get, especially in Harpies and E-Dragons.