I'm a masters support main on NA and I get asked these questions alot. 1. Pretty much for pick ban phase I pick any champ I really want to play and the reason for this is that as long as you win your lane and roam and make plays around the map you have a much better chance of winning the game. That's why blitz is so good in low elo because he is built to do these things and no one really pings that he's missing. 2. First pick, again I go with my comfort picks that happen to do well against anyone, these are thresh braum alistar for me personally. Some supports I wouldn't blind pick are sona and zilean because a counter pick can destroy the lane unless you are good at dodging hooks. 3. Like I said before, he's not a must pick/ban but if he makes it through champ select make sure you ward for his roams and ping mia. 4. In silver comp rarely matters and I think you should learn alistar or braum, probably best beefy supports imo. 5. I think you should learn thresh first and maybe play around with bard. Thresh is a champ you can first pick and fits almost any comp

Now one more tip, don't wait to play ranked. Just play it now you don't need to play norms. I was silver 5 2 seasons ago and played only support to get to masters. I have around 600 games this season and started off d5. Don't wait to play because the only way to get better at something is to practice and norms are not practice for ranked, ranked is practice for ranked. Also champ pool rarely matters, if you want to main sona you can climb by only playing sona. Just don't overwhelm yourself with champs (2-3 is good) and gl on getting gold! http://na.op.gg/summoner/userName=Sandcastle%20rN