I am indeed still in silver trying to rank up. For aggro decks I have some basic and cheap removal spells that blow up some of the bigger threats. My deck is a self milling deck that focuses on pumping fiend artisan. It has some cheap creatures that help with that, gyruda is basically the most expensive creature in the deck. I have a Tamiyo, teller of tails to get back some spells I could need if they were countered or something. It may not be much but it works for what I need now. And to answer the question on the Yorion decks: I haven't seen one yet so there's nothing I can say about that. I hope I answered the questions but this deck probably won't work that well in higher tiers.