If you look at the banned list, you'll see cards that when drawn GREATLY change the way the game is played. It's not so much about how good their abilities are (Kolos
, for example can no longer 1hko in ELO
, though he's still banned) but how they affect the game (you see a Kolos
in your opponent's hand, you are FORCED to play around that card or you lose). Unbanning a character would split the meta into two parts: people using the high-impact card, and people playing decks that have a variety of ways to deal with it. Example: Caelus Cr
becomes unbanned. Result: People start using Tula
, and cards that manipulate attack as an ability. Next result: People play cards that beat those cards, but not the first set. This isn't healthy, it isn't fun, it's just ELO
losing a diverse meta and being split into one majority using unbanned card, a minority anti-metaing, and another very small group anti-anti-metaing. Everyone else will lose to the power card decks or the answer decks.