Ok, people who say this deck can be beaten by heavy backrow, you clearly don't know how to play a vampire deck. First of all, if there's backrow never atk, just bring out 2 grace and keep destroying whatever card the opponent put, UA take control of their strong beater, destroy whatever is coming next. I use vampire, and have heroes and silent mage deck too, and vampire is too broken. I never lose duel using vamp apart against mirror matches. So yes they need a nerf.
The thing is you can't keep doing that forever. Kingdom has a limit, which is the number of vamp monsters in your deck and when that runs out, you can't do anything to blow your opponent's field.
There's a reason why vamp sucks against backrow heavy deck like wallet control that tops a lot in the recent meta weekly tournament.
The thing is you don't need to keep doing that forever. In most cases, you win the duel before you run out vamp monsters in your deck. That's why TS said it is broken
If vampire is that broken, why it doesn't even get in the top 4 of the latest meta weekly? 3 out of 4 decks are breaker control decks, which tells us that they are even more broken than vamps.