So, what do you fellas think about the screw with the enemy jungler start? I'm obviously goofing about with it, but I really think the way people are currently starting the jungle just opens things up wide open for shenanigans. I'll back up a sec though...
yesterday I watch a vid that was on reddit showing a fairly legit jungle invade strat based completely on taking advantage of the way junglers are starting. In the vid, the guy starting his own blue or red buff with a leash (and using smite) and immediately went directly to the enemies red/blue buff (whichever is closer). There the jungler would wait until the enemy jungler was low from soloing their red/blue, then go in for an attack or kill knowing the enemy junglers smite is not up. If the enemy jungler did not ward, they won't really be expecting it.... and also people aren't even typically pulling the jungle creep into the bush, so you can literally walk into the bush, stand right beside them, and wreck them. Best case you get a kill and their buff. Worst case the enemy team somehow knows you are there and collapses, but the timing is so early and vision has almost always decayed by the time you go in with folks just using trinkets. So, you probably get a kill, or you get a flash and set back the jungler... AND you can go at it with your support to increase the odds of a kill.
OK - so, that strat works, but it does require knowing where the jungler has started. You get that wrong (and often you are just guessing), now you are behind and in a bad position (eg you are jungler that just came to a full hp buff camp and your smite is down - and the enemy jungler is likely on his way towards you).
K - so the next cheese strat I've been doing with blitz. The goal initially is to steal the jungle camp, but depending on the jungler, you can opt for a kill if you have ignite. You simply wait until 1:50, then run where vision has like a 95% chance of being expired, and toss a ward into the jungle camp you are looking to steal. Just wait there for the enemy jungler to appear (usually around 2:05 or so). Pay attention and realize they have no smite and have a good idea of how much damage they do. IF they are pretty low hp themselves and not pulling the camp into the bush, either try to get an angle where you can pull the jungler or go stand in the bush next to them. Once they are a couple hits from getting the buff. engage hard on the jungler and pop ignite. You play it well enough and you likely get a flash and a kill. At the very least, you've set their jungler back and they will have to base.. which should buy your jungler time to steal their other camp (or, if they are smart (hue) realize that its probably worth their time to join you when you do this and just take the buff for themselves, back and then bee line to take another buff camp).
Barring that, you can fairly consistently pull off a very easy buff camp steal just by timing your pull and landing another auto attack after grabbing.
I'm also thinking you can just run in like a thug as most supports (provided you have ignite) and just go for a kill or steal while they are attacking red. Obv that works better against some junglers than others.
Last - the obv trade off is that you force your adc to be solo lane vs an adc and support. It translates in about 30 seconds of along time for your adc. that's not as big a deal as the other downside - you come back to lane more than likely down in levels and smart enemies should take advantage of that offset.... which puts even more pressure on your adc.