Optimal spending of ironite

[slauki]

Hi folks,

i would like to know, what you think is the best way to spend ironite (in this case 1000 ironite).

I think i would prefer to buy 2.100.00 gold for 1000 ironite to upgrade my talismans, because that would make me much stronger instantly.
the downside is, that i wont get any attractive characters.

But if i buy about 15 rare souls with the ironite, i will get most of the time one 4* character and if i really suck out on luck a 5* character. The rest would be more or less worthless 3* trash characters. And if i get a 4* or a * this doesn't mean, that it will be a very good one.
So i would have thrown my ironite away most of the time.

Maybe it would be good to upgrade the talismans the first two times with the ironite and after that, to buy rare souls?

What do you guys think about this?