Im still no expert, but I have come a long way since then
Meanwhile if you can get Chittering Dispatcher down early or on a relatively empty board and get a couple of swings in with it, that myriad effect is going to build you a small Spawn army pretty quickly
Oona, Queen of the Fae: Oona is a strong "millstone" creature that has the nice side-benefit of creating a swarm of 1/1 fliers with which to defend yourself or to kill off an opponent while you are milling another one out
Steelshapers Gift and Open the Armory are perfectly viable alternatives, and youll probably run them alongside this Kor two-drop if youre going all in on the theme
I've always had a soft spot for Infect
It wasn't that long ago that most combo decks were built around spells (think Storm and Ad Nauseam), but now, many combos are creature-based, like Melira, Sylvok Outcast and Kitchen Finks or Devoted Druid and Vizier of Remedies