Don't ge me wrong here I love the idea of backwoods hillbilly gremlins showing up at the wrong time to ruin everybodys best laid plans. I picked up the jones box set last week end and have a few more blisters on order. I'm also really looking forward to playing him.
I fully under stand that deck control is one of the attributes that set jones apart from the other masters out there. I just feel that changing larva to a (2) is not quite enough. It still will allow som'er and a savy player too much deck control.
Leveticus has much more situational deck controling tactics. At best, on one turn, can get a hand of 11 or so. That requires him to activate and sac desolation engine and cast a spell or two. With som'er you just need to keep the Mosquitos within 6" and out of threat range. Granted that may be tricky at times but a savy player could do it.
Again just my opinion.