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Your items section is extremely awkward. By that I mean the placement of your icons. Elaborate more on why you chose those alternative items. You also didn't even explain why you chose what you did in your build. What if the team has a lot of AD? What should I build? The guide is not very clear, you should consider your audience, what if a totally new player wants to play Elise and decides to read your guide? In your skills you could include images, colour, and/or videos, it's like a big wall of text I don't want to read. Good luck!

Thank you Velediron for defense and like you said - she benefits by all abilities from AP like Nidalee.

Edit:
AD for spider form? Same sense to built absolutly everyone on AD because you can hit with normal/autoattack. I would understand attack speed for regen with (W) - Skittering Frenzy, but my experience is that when you are in range of enemy DMGers you will get burst Dmg and die, you are squishy assasin you will not get even a chance to lifesteal/regen.

Have you even played Elise? The spider form is AP aswell. It does not scale off AD any other than autoattack.

you really shouldn't upvote without testing it first

I don't think a full AD of Full AP is the answer. because Elise has two forms, the human is AP but the spider is AD and they are both equally important

I love this guide. I can't wait to try it out!

Yes she is teoreticly hybrid. I saw a guide with N. Tooth and I have in Alternative items Hextech Gunblade and Lich Bane , but I think that her Human form is too strong to build her like balanced hybrid fighter in spider form.

something else for you to try out (or maybe i should make my own guide haha) is building her with mixed ad and ap and starting out with doran's blade instead. I haven't tried it quite yet but i will soon.

No. It was a mistake. I misleaded Deathfiregrasp with Blackfire Torch. I ve corrected it already. Thanks.

Blackfire Torch is for the new Twisted Treeline only. If you are doing a build for that, then of course you can have that. However, Rabadon's Deathcap is not available in the new Twisted Treeline, it has been replaced by Wooglet's Witchcap.

I thought Blackfire Torch is only buyable in the new Twisted Treeline?