Jakiro is my first hero use since in DotA 1 .. As a team support just like to share my item build and skill build.I've just note the only thing that is totally my part in playing Jakiro .

1. 3rd skill type Jakiro will do better spam with no mana cost.

2. Some of the items is actually know of any Jakiro Users in game ..The only thing i like is using Boots of Travel in the Crucial gaming. This will help if your team won the clash and enemy haven't gold for buyback. Teleport to the wave of creeps and push

That is the only I like to note. Being a Team Support is the hardest role. So don't give up fight till the end.
Just remember 75% of the game is based on the Support and a Hitter or Carry can't fight without a support in the Early game .. :D