Okay so I am new to the form so ill introduce myself I am DJ (that is what everyone calls me anyways),
I have posted this as I am in need of advice for a T2 sideboard (casual) my friend plays mono red and I
play green blue but I am too slow to stop him and I cant think of anything to sideboard against him as
I don't have one yet against faeries I can put in Raking Canopy but my worst match up is against
mono red so I need some way to stop it and I was wondering if I can get an insight on how merfolk works
and I am hearing things about a deck called rock.

Help me if you can please and thank you DJ.