The Feral Flare is currently stirring up all sorts of controversy with players as there is no doubt the item is strong but players are divided in whether the item should obtain minor nerfs or should be gutted. Feral Flare is definitely very powerful and changed the solo queue jungle quite rapidly to the point where there are a handful of more (jungle) champions as perma-ban worthy. Aside from Leblanc bans, most players seem to be banning every jungle they feel threatening and still coming up short in bans. Even if you fear the Feral Flare junglers, players still need to remember that there are several other threatening champions in the game that do not use it and are also ban-worthy. I was recently cursed at by my teammates for not banning Pantheon despite my bans being "high-priority" bans in this patch (they were Kha'Zix, Evelynn, Warwick) and I have seen some teammates dodge because certain champions were not targeted and ended up getting picked.
The item was released to give carry junglers an offensive jungle option other than Lizard since there were plenty of junglers that made little or outright poor use of it. Wriggle's Lantern was reworked and made much better but it was also given the Feral Flare evolution which made the item have actual late game potential. It granted a lot of power to auto attack heavy champions and it seemingly benefits every intended jungler that Riot wanted to indirectly buff with the item. However, it has also seemingly been useful on junglers that were not intended to use it and players have shown mixed feelings about this along with the fact that the item might be a too powerful in its first patch.
In this article, I want to give credit to a few champions who greatly benefitted from the Feral Flare changes without any order as to who is better. Certain junglers definitely saw a massive increase in power while others were already worthy junglers but were finally given an option for damage builds and had an increase in carry potential. The reason this article was delayed was because I was waiting for the hype around the item to die down. The hype is still there but hopefully LCS using both the Spirit Line and the Madred's Line shows players that it is simply different methods of jungling which prioritize different things. It is not to say that Feral Flare is not obscene in solo queue but that perhaps the item does not deserve to be gutted with nerfs so soon. Feral Flare is an item that is rather balanced in competitive but obscene in solo queue.