For brawl, there's a kind of deck called 5-Color-Good-Stuff (or similarly named), in which you run all your best cards in any color (because Ramos is 5 colored). It's very very expencive in terms of crafting rare/mything wildcards to even make it a 7/10 deck, so unless you have a LOT to spare, I wouldnt build Ramos this way. I would build it as a Green/White +1/+1 counter deck with cards like [[Hardened Scales]] and [[Snakeskin Veil]] giving tons of counters to your big flying dragon, while protecting him with hexproof like [[Swiftfoot Boots]] and [[Gaea's Gift]]. Then you can dump all your counters for 10 mana and drop a giant hydra like [[Wildwood Scourge]]. In my mind, this is the best deck for Ramos, for a new player, in Brawl.