Human and Knight are both potentially relevant creature types, and an efficient creature that keeps coming back can really give control decks fits
So, when choosing trainer cards, ensure that out of 25 trainer cards, you have 5-8 cards, making it possible to take cards from the deck/discard if you have a few useful cards in your hand
Splinter Twin and Jaxis, the Troublemaker are two of the best ways to do this
Ken suggested Torture and then designed Daily Regimen to be its opposite in Morningtide
Use your networking skills
We've spent so much of this guide talking about exceptions, that it's easy to lose track of the fact that they are, indeed, exceptions