Any answer that isnt ahri, talon, or zed mid can be safely ignored. Not only do those champs snowball stupid hard but they can roam very well and roaming mids is the key to wining games and getting out silver. You HAVE to prevent the enemy from running over your shitty bot lane or top lane. You are basically a 2nd jgler because silver jglers are non existent. You would have a ramus afk farm for 15 to 20 mins for example.
Because of this your shit bot lane will get run over for free because they are shit. DO NOT LET THIS HAPPEN. You have to 1v5 carry every game in silver, there is no if ands or buts about it. If they get run over you lose. This is why a roaming mid is important. This is why jg is important.
CS is not important in silver. I shit you not, you are wasting your time by csing. Why? Because 1 death every 30 seconds to 1 min is the norm there. No amount of csing is going to allow you to catch up to a draven, irelia, or kaisa that is 10/0 by 10 mins. However they are that fed because YOU let them run over your trash allies. So instead of csing just hard push the lane and help your losing lane. Tax them if you have to. Now if they are winning lane then sure focus on csing and holding ur lead.
Ahri, talon, zed, can hard push waves and roam and tower dive making them ideal for carrying teammates. The tower diving element is what separates them from othet midlaners who have good wave clear but no mobility to roam and secure kills with dives such as anivia or ori.