Hey people !
I've basically written all my thoughts on this decklist here : https://www.tgpeternal.com/articles/2018/7/3/two-ways-of-taking-rakano-midrange-to-masters
Long story short, I found it to be a quite consistent (79% winrate, roughly 40 games) decklist for anyone who wants to play a midrange-ish Rakano deck.
In my opinion, Rizahn is amazing and well worth the craft.
If you have any question, don't hesitate to hit me up here or on reddit/discord !
Have fun :)