** GUIDE CURRENTLY UNDER CONSTRUCTION, NOT COMPLETE YET **
Hey there, I'm Hydra. Diamond one trick on NA. I ended Dia4 in S7, and peaked Dia2 promos. Currently still climbing in S8.
I stream and commentate ranked games at https://www.twitch.tv/ratjungle if you're interested in practice not just theory.
If you have any questions, you can join my Discord server at https://discord.gg/f5DSbvp.
Run always. Any other combination is asking to be focused and become useless to your team. Smite is for obvious reasons (this is a jungle guide), and as for flash I'll explain that below.
Twitch is a hyper carry without any mobility, with the exception of an MS boost/invisibility from your Q (which still won't save you from a Jarvan ). You NEED flash to maintain relevancy throughout the game.
Speaking of the game's timeline, flash is also crucial for the early game not just the late game. Sure you might get a cheese kill on the enemy laner with ignite but you can still do that with flash, and you'd be giving up so much for that choice.
As your team's jungler it's your responsibility to apply pressure and assist your laners in gaining advantages. Twitch's clear speed is abysmal compared to meta junglers so powerfarming won't cut it either. Therefore, spam ganking is a necessity and if you get caught out without flash you're dead. As Twitch Jungle if you lose the early game, you're putting yourself in a terrible situation.
The standard rune page for Twitch Jungle is Precision (PTA>Triumph>Alacrity>Coup) and Domination (Impact>Hunter). Precision as your primary rune tree is crucial here, as you won't get the attack speed you need to get a healthy jungle clear otherwise.
There are many alterations that you can add to this first rune setup however this is what has worked best for ME. Never blindly follow a build of any kind without putting thought into how it will effect your own gameplay.
For instance, if you're new to Twitch Jungle and feel low on HP after clearing your camps, then run Fleet Footwork for more sustain, instead of Press The Attack which gives you more damage vs champions.
If you doubt you'll get a solid spread of kills across the board in a reasonable amount of time (meaning all 5 enemy opponents) then don't run Relentless Hunter (+8 out of combat MS, +8 MS per unique enemy killed).
If you're afraid of getting invaded by the enemy jungler then get Ghost Poro so you'll have a warning signal.
If you want to run a different secondary tree entirely because it might work better for your individual playstyle, then go for it. However, for this Standard rune setup I strongly recommend you stick to Precision as your primary as the attack speed is imperative for clearing.
One final note about the Standard rune setup, NEVER go Lethal Tempo. It's purely a noob trap and it is counter intuitive to Twitch's kit, and the Jungle role.
For different rune setups entirely, such as primary Dark Harvest, Electrocute, Unsealed Spellbook etc. I won't be going into much detail as I strongly believe they are just situational and up to your own preference, not optimal. None of these give you the attack speed that Precision primary does so you'll have an even harder time getting a healthy clear so that you can gank lanes.
Dark Harvest can be a decent option if:
You're against a low pressure jungler and you feel confident taking camps and pushing them around
You're smurfing so you know you'll win early game.
There isn't a disgusting frontline like Maokai Sejuani Alistar that you have to tear through.
Electrocute is similar to Dark Harvest with some variation:
ESPECIALLY no tanks/frontline whatsoever for you to deal with, or else Electrocute will be wasted.
You feel that your team will be beyond outscaled past 15-20 minutes (a very obvious team comp loss, a ticking time bomb). Here you can run Electrocute and hope you can hyper snowball early on before it's a lost cause.
There's a solo lane matchup that will tilt either way extremely easily with a little pressure. I.E. Riven vs Jax. Electrocute will provide more burst in a level 3 scenario then PTA and could potentially secure the kill, thus ensuring your laner can destroy the matchup going forward.
Unsealed Spellbook if you want to confuse yourself and the enemy:
This is honestly not a great option but it can be fun. This was nerfed in patch 8.3 but it shouldn't effect your application of it very much.
You can use it as a free ignite to get a kill in the early game, switch to flash for the rest of the game, and situationally switch to exhaust if there's no hard CC on the enemy team, just damage. (Katarina etc.
At the time of writing this, I can't honestly think of a situation where this would be optimal. Maybe just something to test in normal games. Your potential ranked teammates will appreciate it.
In terms of skill maxing, start E to clear your buff, then Q for either a level 2 gank or AS steroid to clear the rest of your jungle more quickly. At level 3 put a point in W for the slow; this slow can be used to kite jungle camps or to gank. From here, the priority of maxing which skill goes to R>E>Q>W. So put a point in R whenever you can, then E, then Q, and finally W. Following this, at level 9 you'll have 5 points in E, 2 points in Q, and 1 point in both R and W. This isn't the most ground breaking information, most people will know what to do here but for the sake of this guide's completeness I have included it.
Now for the fun part. Twitch is a super unique champion with the potential to 1v9/2v8 games in the right hands. Being a hyper scaling marksman with a stealth that resets on kill/assist adds a layer of gameplay that other ADCs don't have. His stealth is another reason why he is more viable in the jungle then most other marksman in the game. It puts pressure on the enemy lanes at all times because their wards typically won't give a heads up on when the gank is coming.