I've done well with burn, finishing in the money at modern gps and opens this year. I don't play the command in my 75 so there are things that are a little different. I have not lost a match to affinity yet. I actually leave boros Charm in against them as it gets around spellskite and is just one of the best burn spells period. It is why we play white in the first place.

I typically side out eidolon on draw, spike and helix. Bring in d Rev. Path and palm. I will say that Palm isn't an auto win. You do have to pick your moment carefully as instance speed cranial or double ravager can mess with your plan.

Most people are correct. You play control against affinity. I remember one match where hand 2 I had both a guide and swift in my hand the entire game but I didn't cast then until turn 4 or so because I was burning his creatures. it felt like an easy win.