Does anyone else find it odd that...

[playingtokrush]

I'd guess you can do this with most classes.  Here's another example:

Execute: lvl 32, Improved Execute: lvl 25
[right][snapback]71392[/snapback][/right]

Well, I'll be. And I'm pretty sure you can't do this with most classes. Good luck finding any mage, warlock, or priest talents that are like that.