Is it just me or is Thunderlord's wayyyyyyyyyyy too strong?

its just you

It definitely is the strongest Keystone right now for non-tanks. I know a lot of people are calling for nerfs to it but I'm glad that Riot is instead buffing all the other Keystone Masteries instead. I think Keystone Masteries should be powerful and game changing. You can read more about the changes on the PBE here:

http://www.surrenderat20.net/p/current-pbe-balance-changes.html

Strong? Yes, but the other keystones are being buffed to match it, and it looks like some will end up more powerful. It defidently synergises well with many champions, but so do the others, and again, they are getting buffed!

-Tract

Getting fixed. Fret not.

Its strong, but I wouldn't say its head and shoulders above the competition.

The difference is that it is easy to see Thunderlord's taking effect and how much of an impact it has once every 30s as opposed to many of the other masteries which are more subtle in their power.

You can point to a kill and say that the extra 100 damage secured it, but how many time can you remember the extra healing and ar/mr of Windspeaker' saving your life? Its probably saved me multiple times but because of how it works it is difficult to point out as they happen the moments that they meant the difference between life and death.

So overall I wouldn't say that Thunderlords is that much more powerful just that its power is more noticeable.