First off, this is just a simple guide. I'm not going to bombard you with an essay on why you should or shouldn't use this in a game. Give it a try and if you have any adjustments or any feedback let me know! Now to business...

Pros:

1. Decent clear time early due to passive and Q damage.
2. Has an extra escape for those risky buff steals and ganks.
3. Global ultimate for securing kills or clearing waves.
4. High attack damage potential.
5. Highly mobile.

Cons:

1. Fairly squishy throughout the game (Hence the mobility).
2. First clear time is very important, as is the early game.
3. Lacks a slow or stun, meaning gank potential is medium at best.
4. Requires large items to be effective.
5. Early invades can make you irrelevant for early game, thus throwing your mid game off.

Do a regular jungle run. So do as follows: Begin wolves, Blue, Wraiths, Golems (Wolves if your having trouble) and then tackle the red buff! Make sure to use your potions but remember to pop them regularly so you don't end up being brutally murdered by the big Golem... Nobody wants that. When ganking use your arcane shift to close gaps and keep up your passive and DPS, you MUST hit your Q, Ez revolves around his Q.

There you have it, a simple easy to follow guide on jungle Ezreal. Any feedback or tips you have throw them my way, I'll be updating this and any other builds i do regularly to keep them relevant and to give people the best builds i can. Thanks for reading.