Obtain Ritual Base Types

Hey guys.

is there a way to farm "Archdemon Crown" and "Stormrider Boots" ?
or a way to have the best chance of it? I'm playing lot of maps and really dont get those items.

Hope, someone can help me...

"Farm" them, there is no way. There seems to be some highly-rare Rituals (the ones with blood portal and candles), like Opulent, that only yield Currency rewards, or only unique items.

I've ended the Obtain Ritual Bases just today. I've noticed most of those appears most frequently in T14-16.

Other than that, use the Reroll in order to double your chance to get those items (IF you don't have currency-only or unique-only rewards) - you can eventually defer the item for the next Ritual