|Happiness is an axe that never stops swinging|
Though he does have his weaknesses, Butcher3 is a very powerful warcaster. Along with that, he is a very potent solution to an issue that has been plaguing Khador players for awhile. As a result he's very popular in competitive play. A funny thing happened with him though.
When Butcher3 was first released (I want to say at Lock & Load 2013) it was like a bomb went off. Players were scrambling to come up with the best lists for him and counter-tech to mitigate him, all while he was screaming across the table and chopping everything up into itty bits.
Out of that chaos, one list rose up as the "best" Butcher3 list, and it has become very popular. However, that (and general exposure) has lead to a downturn in Butcher3 enthusiasm, as players begin to feel that he is "solved." His best list is known, and there are a number of dangerous countermeasures out there for him (though ironically not Countermeasures,) so players begin to wonder if he's really all that great or worthwhile.
I think this kind of cycle is natural in any competitive game. It's especially prevalent now that the Internet allows for much more information to be exchanged in a shorter time than it used to take. Players are much better equipped to discuss, show, and break down something like Butcher3, and as a result it can make things feel "figured out" even when they're still relatively new.
With all of that in mind, lets take a step back and re-evaluate some of the list builds commonly seen with Butcher3 and see if there isn't room to shake things up a bit (spoiler: there is.)