Hey guys!
This is an experimental build, which I eloborated and tested for a couple of games!
So let's get started!

Some basic stuff! Let's cut it short:
Attackspeed for a lower ult "cooldown", movementspeed to kite and follow up easier (in jungle replaced with masteries).
Some AD for quicker jungle speed.
Resitances and such for mid- and lategame.

Why i picked this "weird" built, is the fact that attackspeed and hp is perfect for a bruiser, jungler and a ult that gets reduced by attackspeed. Ionic spark helps for pushing the lane, if intended for sure, so if you want to freeze a lane or just make it a farm lane, rather rush Wit's End than Ionic Spark.
Usual Bruiser stuff, HP resistance, thats pretty common and usual i guess.
For sure build what you need, depending on the opposite team and their powers!

In jungle you'll just need exhaust, if you dont take it, gg, your ganks will never will succses full unless you have some strong cc on the lane you gank + good comms, which is not common anywhere than in a ranked team.
Basically 0cc champ -> EXHAUST A MUST!