I understand wanting to build a good combination, but he is actively advocating using 'respec' as part of his leveling strategy. In my opinion at least, respec is there to deal with F'ups in your build, not as a cheap trick to avoid and decrease in damage output as you level in a MC build. I find that sad - and that this seems to be viewed as laudable too. I stopped watching after the first section - but I assume that he continues in a similar vein for the other builds he suggests.
There are a couple respec suggestions. I personally won't be using his builds, because he is the ultimate min-maxer to the point where it isn't as fun for me, but I thought others might find it helpful or at least spark some ideas of their own.