Pros:
+High Burst
+Tanky af
+Best mech in the game (**** SKYE AND BARON)
+Lightning. Who needs T3 reim anyway?
+T3 Nazi Joule
+Jumps for days
+LAZARS

Cons:
-Taka
-Shut down by CC during Big Red Button
-Taka
-Skillshot reliant
-Taka
-Weak Early Game
-Oh, and Taka

This skill has been buffed IMMENSELY in the 1.22 patch, with the arc now 220 degress instead of 90. It is immensely powerful, and what makes Joule so tanky in this new patch. Try to deflect as much damage as possible with it. At level 12, this perk has the shield of a Aegis and the armour of a Metal Jacket. However, Joule is still vulnerable from the back, having little shield/armour scale.


Joule's engaging/chasing tool. Has been left relatively untouched for the past few patches. Is great for closing gaps and initiating. However, you can still be hit while mid air and even DIE. If you have another initiator, it is not recommended to initiate with this skill as it will be harder to hit Big Red Button. Instead, use it to catch stragglers that survived the initial burst. Take this ability at levels, 2, 5, 8, 10, 11. The Overdrive is taken as it cuts the cooldown by 6 seconds, which is a pretty huge difference.


The bread and butter of Weapon Power Joule. It is your main damage tool after Big Red Button. It requires some skill to land consistently. Take 4 levels at 1, 3, 4, 7. The overdrive is not taken as the crit function is not used with Crystal Power Joule, and the overdrive on Rocket Leap is much more effective.


Crystal Power Joule's signature move. It destroys healthbars like me destroying my social life :(((( I never had one to start :((((
Take all 3 levels in this ability as soon as possible.

Adagio:
Can't really do much against Joule. pretty vulnerable to getting stunned by the ultimate, however this can be reflex blocked easily.


Ardan:
Gauntlet won't do much if you do not get caught. Just Reflex Block and run out. Outside, you can Big Red Button the opposing carry and [[Thunder Strike those inside the Gauntlet from outside.

Joule has a relatively early game, as she does not have massive burst damage like Koshka or crazy lockdown like Reim. Rush your Shatterglass first, buying Sprint Boots and other stuff like flares or traps (to your own discretion). Joule powerspikes at Level 6 and that's where the fun begins. With a MASSIVE 500% CP RATIO, it shreds enemies during early game teamfights.

Shatterglass should usually be your first item, as it offers the most raw CP in the game


Broken Myth] helps amplify your damage quite abit during the long [[Big Red Button, and can be kept up with Thunder Strike. It offers 70 CP as well which helps, and the 10% shield pierce is helpful.


Clockwork gives additional 30% CP, as well as lots of energy and cooldown reduction
More cooldown reduction=More Spammy Abilities
More Spammy Abilities= More Damage
More Damage = WIN!!! XD


You can either go Journey Boots to run fast, or Halcyon Charges for even more cooldown (refer to above)


Fountain of Renewal is an okay pickup on Joule due to Joule's innate tankiness, the active could mean the difference between life and death.

For the last item:


Eve of Harvest Heals you for quite abit during the the Big Red Button. Get this if you are getting focused on.


If the enemy has quite a tanky comp, opt for an Aftershock and shred their healthbars with Thunder Strike procs.


Frostburn gives a good 100 CP, and the slow prevents those ***s from just running straight out of the beam.


**** TAKA

The way I play Joule is play passive until level 6. Then, get kills with your roamer and try to snowball into an UNSTOPPABLE FORCE OF MASS DESTRUCTION. Snowball hard and end the game before the enemy team catches up. Even if you don't snowball, try not to fall behind and their carries will still fall like Blackfeather's relevance in the meta (Is he back yet?)

let your roamer initiate (unless it be Lyra)
get your wp laner to kill the enemy Taka (If any)
line em up and Big Red Button
Rocket Leap and Thunder Strike those that survived.

go a Crystal Bit and two Halcyon Potions
Do a normal jungle inavers. Get your roamer (if any) to flare the small camp to watch for invades.
Try not to die :)

I feel like it doesn't do much. Thunder Strike is basically this but better, and the slot is better spent on an item like another Shatterglass


y.

In conclusion, hopefully this guide made you suck less at the game.