Level 2 gankers and their contesters will still always dictate the meta as long as it requires 4 jungle camps and there is importance on crab XP. Its a fact that junglers will gank more if they don't have anything to farm, or their XP is piss poor and they're forced to just gank and rubber band it afterwards to be efficient, and its even more of a fact that only the most efficient junglers will be viable, which with the delayed level 3, puts too much emphasis on those with level 2. A level 2 powerspike jungler can essentially gain a lane priority, river control for additional XP (a camille clear path can be red - > same quadrant side crab - > mid lane - > other crab - > blue), and deny XP to the other jungler that can't contest while also denying invade opportunities or gank pressure due to river and camille getting too much priority and information.
The only way to remove level 2 emphasis, would be to make it so river isnt an XP cut-off (revert crabs), and revert the XP gains for level 3 back to 3 camps (even if they each take twice as long to take, it will enable junglers to adapt or hide in specific quadrants rather than being forced to look for a 4th camp after doing a quadrant and losing crab)
Even nerfing camille/xin isn't the answer as you'd just see a surge of other level 2 replacements, namely twitch, warwick, shaco, and more, stuff currently being held back by their playstyles just being outclassed by the meta picks right now.
For non-level 2 gankers to be viable, they have to have really good clears and clearing options (such as early krugs and raptors as needed) and have a massive payoff for giving up the early pressure, ex Elise cannot level 2 gank but once she's 3 she can be online everywhere relentlessly, and evelynn can be detrimental to the early game but if she plays it out safe, she can become a monster and solo carry herself.
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Well, just shows you how smart the boards are, but not my fault people just refuse to ward.
In Diamond+, level 2 gankers like Camille and Xin barely have 50% wr, with Cam being at 49%, on the other hand, people who'd like to powerfarm to level 6 like Eve who has 51%, Kindred who although they can gank, they aren't heavy gankers but quite enjoy some farm have 52%.
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Camille has triple evelynn's pickrate, and xin zhao has been strong for just as long with the same pickrate. Kindred has 52% winrate because their 5% sample size are mostly experienced players rather than meta slaves spamming camille even if they don't know how to play her.