I am about to start ranked soon, and I don't want to get into bronze like I see lots of other people do, and then get stuck. Also, I want to climb out of silver. Can mastering these champs get me out of low elo?
only if you are good enough to be out of bronze
Quite frankly, the champ you pick doesn't really matter until you get into Plat. If you're good with the champs you pick, they'll carry you all the way there without regard for meta. Anything up to that point is all about game knowledge and understanding how to win (with some degree of mechanics).
You can't carry your way out of bronze solo. Too much depends on the team. Once you are in gold, your actual skill matters.
You can climb out of bronze with anything.
Ok, thanks! I'll be sure to practice jg a lot, I like to pressure and take objectives over kills tbh.
I like those champions, but they all rely on their team's to help them achieve victory. Where as Elise, Lee, Graves, Kha, Eve, and Rengar can simply just hard carry a game from the jungle.
Yes, they are strong.
Playing any tank will auto win you the game. So yes. Ivern isnt really a tank though.
Amumu stomps low elo becuase they always eat ults and adc's never buy 
. Dunno about the others. One thing, don't start playing ranked cuz there are only 2 more days of this season.
Short answer yes. Long answer, other options may be easier.
In low low bronze, Ivern might not be that great. But at upper end of bronze, people will actually teamfight and such, so it could work. Rammus was in a rough spot vs lethality imo, but now it might be ok. But Black Cleaver is still a thing.
