I think this is mostly reserved for games where Talon is a bit useless. What Tian always does is he tries to make both junglers useless and this invade kinda suceeds in that. You are both behind compared to where you usually are, but you, as the invader, are ahead than what your opponent currently is. You both have a bit less agency, but you are stronger.
The invade is pretty simple, you can only do this when starting blue and you want a strong midlaner.
- Get someone to ward enemy Raptors
- If enemy starts Raptors, that's fine, do your normal full clear. If not, steal their raptors right after their blue
- Get your own Raptors, get Krugs, then get Red, then play for the scuttle on the side of the map you started from. To make it in time, you need to have a perfect clear and ideally leech a bit off XP off mid so that your Raptors (your pathing is Blue Raptors Raptors) gives you level 3. Some junglers are also not that fast in one shotting scuttle and you can easily make it in time.
There are many variations of this depending on what the enemy does (invade or no invade, started their red or their blue) but the basic idea is that you want to be there on their Raptor respawn, take it with your stronger midlaner, then immediately move to your own Raptors + Krugs
The nice thing about this is that you have full info with your raptor ward. If they started on their red side, you can see them check Raptors and you can see if they go invade your blue side or if they continue their clear and can adjust accordingly.
If they invade you while starting red, you can invade them back and it works really well for you, as they can only get your 2 camps (you already took your Blue) while you get their 3 camps.
If they invade you while starting blue, you can respond to the invade, it's generally really awkward to be invading Gromp as it's way deeper than something like Raptors, so it's really bad for them.
I'm not even 100% sure this pathing is good for Talon, but it seems good with Ignite and just constantly forcing fights with enemy jungle. If you have a stronger mid and their jungler has weak early game fighting, you can probably force this and they can't do much about it. Extra points if you have a roaming support and you are on Red side (Red side team, not talking about camps) so that it's easy for your support to roam for the Raptor respawn.
Important note is that you do Raptors Krugs Red when you go to your jungle, not Raptors Red Krugs. There's a chance you get contested on your Red by a level 2 enemy jungler that did Red Krugs and saw your invade. By going Krugs, you get level 3 before they get your Red and you can fight. It also lines up your camps way better. After fighting on their Raptors respawn, your Raptors respawn and you want your Krugs to respawn right after so you can clear them and get a really good recall. For them to sync up with your Raptors, you have to do Raptors Krugs Red instead of Raptors Red Krugs.
Note: I'm calling this the Tian invade cause he did game 2 vs G2 yesterday and it was my first time seeing it, idk if anyone else did it before. That game developed in a weird way cause Skewmond started Wolves and was in a really good position to ignore it and try to break the Neeko lane, most games won't play out like that.