After the banning of Colossus (which is one of the worst and most unnecessary bans of the last few years), TD's need a new boss monster. Thunder Dragon Supercharger Thunder/Fusion/Effect *9 DARK ATK 3000 / DEF 2600 1 LIGHT "Thunder Dragon" monster + 1 DARK "Thunder Dragon" monster Must either be Fusion Summoned, or Special Summoned by Banishing 1 Thunder monster you control and 1 "Thunder Dragon" monster from your hand, field or GY. Once during either players' turn (Quick Effect): If your opponent activates a card or effect, you can Banish 1 Thunder monster from your hand, field or GY; Negate the activation of that card or effect and if you do, Banish it. If this card would be destroyed either by battle or card effect, you can return 2 Thunder monsters that are either Banished or in your GY to your Deck instead.
The save system is a huge problem, as I'm sure it is with everyone else. Having to save each card as an individual file is incredibly inconvenient for mass production. If they fixed that to be more like the previous system that just had a save databank online, then it'd be great. Sadly they don't and that's a big detractor.