Not really...with everyone testing for 60 draws(6 10draws) and getting a rare...

It might and probably does have luck at all levels...but guarantees a rare after each 60 seal scrolls.
How else could you explain how so many people gather up 60seals and always manage to get the rare?

lol....coincidence? might be if only a few people did...but not everyone.
Told everyone in the group ingame....we all get rares at 60 :D
and I am terribly UNLUCKY. Got Ao on my alt(60seals exactly) and they were not all used in the same day either.

Used 50 one day...a week later I gathered up the other 10 and threw them into the Sage Naruto Treasure and there was Ao waiting for me~

So it's not all about luck...has luck! people who are incredibly lucky might get them before the 60seals(includes free draws) BUT the chance of a rare is so low...that we all go for the guaranteed 60th pull/draw.