Hyper librarian > Card of safe return

Card of safe return was famous for all the extra cards you could draw. It became as strong as other key cards like gateaway of the six or limiter removal. Once COSR was in play, all the combos just get you extra draws that transform your field into something unbeatable. In order to win with this card you only need two things:

1.- Create a strategy based on summon from the graveyard.

2.- Draw the damn Card of safe return.

This card was banned for the infinite number of possible draws. However Hyper librarian acomplish the same strategy but in a better way. Using hyper librarian you will get all the extra draws you need, and in this case you only need 1 thing:

1.- Create a strong syncro strategy capable to put a lv5 syncro in the field as the first goal.

Some people think formula syncron is a pot of greed with legs (but is worst because it is also a tuner). Acording to this example, Hyper librarian is a card of safe return with a hat and a book (Also his 2400atk are not underrated).

I am pretty sure librarian will be banned in the next list. But you can not forget the potential of formula, it have to be limited.