Why, no how do you know you “need” a particular hero. I know, that you know, there are no guarantees when summoning and short of buying the hero you want, I don’t know how SG could possibly make unlucky people lucky.
Hmmm. 290 pulls is an astounding number of pulls and with Neith out next month, it is a never ending cycle of potential disappointment next month too.
I wish you luck - you are overdue a large dose of good luck.