Hello! Here is my Hecarim jungle build. This build shows to you how hecarim can take tons of damage and still can destroy enemy team.

In runes I choose basic attack damage runes and little bit defence to easy early jungling.

attack damage and defence! Nice damage and easy jungle.

Hecarim is melee fighter so you need to build little tanky if you want survive team fights. Also Hecarims ult jump it to action so you need hp and resist to survive there. I buy also movement speed becouse Hecarims passive gives damage to him. When your build is ready you can sell that wriggle's lantern and buy infinity edge, bloothirster or some defence item for example force of nature which also gives you more movement speed.

In team fights I try to use my ult to jump in and do damage as much as i can. I try to be first fighting so they will start attacking me and our carry can attack them safely. In team fights I use my ult on their ad carry or ap carry.

BEGING.
Blue buff -> wolwes -> wraiths -> golems -> red buff
- Gank everytime if they are pushing their lanes. but when you get red buff you can gank easily.