Sustain seems a little too strong right now.

The current sustain builds seem to be way stronger then intended. The builds are generally something to the like of:

• Fleet footwork with Taste of blood and Ravenous Hunter secondary
• Domination keystone with Taste of Blood, Ravenous Hunter, Biscuit, Timewarp Tonic and Corrupting potion

It is getting to the point where I see Kassadin beating champs like Yasuo in lane because the sustain they get from runes is so much. When people can not just make bad match ups okay, but actually turn terrible ones basically into even or favored the runes (secondary ones) may be way to strong. This Reminds me of when a lot of people were going Bone plating and Chrysalis to just ignore bad match ups. I am not saying sustain is terrible, and I don't mind people having some, but its at the point where you can lose 2 or 3 trades in a row and still come out on top of someone who didn't take the runes, which seems like a bad design.