I've used this for around 10 or so games, I'd say it works fairly well however the trinity force is not always worth it.

Sweet build

Martjan, now I start to doubt myself :p I'm guessing it's enemy target needed, yeah.

yes you can go in the air without enemies, but you cant come out of Cataclysm with it?

Great guide and very detailed,especially on the Cataclysm section.+1

Hey Martjan, thanks for your comment. As taken from Lolwiki, it says:

Rappel
Active (on enemy cast): Elise reveals nearby enemy targets, while she and her Spiderlings lift up into the air, and then descend upon the target enemy.
Active (on ground cast): Elise reveals nearby enemy targets while she and her Spiderlings lift up into the air, becoming untargetable for 2 seconds. During that time she can cast Rappel again to descend upon a nearby enemy.

Both are possible, so no target is actually needed!

Good guide, +1

Only:
Elise: she can get out with Cocoon / Rappel when she's in spider form. No target needed.

There is actually a target needed (or am I wrong?)

Thanks for your vote and comment! I adjusted the Golden Aegis-part. As for match-ups, I'll get to that once my studies are finished ;)

I would change part about the golden aegis to clearly state that the shield increases depending on amount of ENEMY champions around, whats there at the moment can be a little misleading, otherwise I found it to be a good read and enjoyed it immensely, if you find some time a full strategy for every match up would be more than welcome to the guide.

Deserved upvote.