[Standard] Gruul Prowess BAD Matchups

I'm currently building a deck for the next RCQ season and I want a deck that will perform well against Prowess. In my country nobody plays standard and I believe that everybody will buy the cheapest best deck, so Gruul Prowess. I feel like that in these kind of scenarios the right choices are two: bring Gruul Prowess or bring something that beats it. Since I don't play standard very often I'd like to understand which are the worst matchups for prowess. Thank you in advance and I hope to create an interesting discussion on which is the best deck to bring in a competitive environment today. I thought about playing UW Oculus, since it has "Into the Flood Maw" to manage early threats and Leyline, but it also has an unfair strategy, but I've never tested it so I don't know.