u/Kindly-Ground7256

I’m trying to work out the best final item for my usual AP build.

Most games, I’ll have:

Rylai’s

Liandry’s

Void Staff or Bloodletter’s Curse

Zhonya’s or Banshee’s Veil depending on the game

For the final item, I’ve usually been thinking Rabadon’s Deathcap because of the huge raw AP spike. But I’m wondering if it’s actually the best option in this kind of build, especially since Rylai’s/Liandry’s are more utility/burn-focused and don’t give massive AP compared to burst mage items.

Would Deathcap still usually be best, or are there situations where something like Shadowflame, Cosmic Drive, Morello, Cryptbloom, Horizon Focus, or another defensive/AP item would be better?

For Asol's first item, the top 100 players typically do rylai's or blackfire torch. How do I know when to build either one first, is this dependent on matchup or personal playstyle?

I am a silver ASOL OTP and every time i go against lux I feel like I unintentionally feed her into a super monster capable of 1v9ing games, last two luxes have been 26 4 and 18 2 I believe.

How can i prevent this, is there a specific thing I need to do when against this champ?