Thanks for the answers!

> Ice gets juiced cause it is the only path with multi hit iceshards and iceneedles. Air tends to get juiced cause a lot of invokers are arials and they naturally get a buff to air.

Does more affinity points lead to more damage, or just make the skill percentages go up faster?

> I would personally not recommend dropping any path. Invokers have a spell for every situation you lose that as you drop paths.

Any idea why people seem to view Water and Earth as the least essential?

> Adhesive web will lag them if they are an arial or bird form and it basically earthbinds them.

Interesting. I was trying to game out a situation where an invoker is sitting in a pit with quicksand above it, and a hidden person was after them. Thief or assassin. If the person isn't flying then they yell when they hit the quicksand. If they are flying, and they go down into the pit, most likely they'd get hit by the web. But if there's no lag, they could get off an assassinate or blackjack/etc. attempt.