First you need to buy this core build in sequence.They are good for in beginning and mid game in terms of cooldown,mana,damage.
For 5th item,Select one of items displayed, according to the team.
If There is a guardian or tanky warrior,select Obsidian Sharp.
Except for it,no need to buy obsidian and Spear of the Magys.Just buy one of them.
But you have much money,then buy two of them.Like these
1TH OPTION FOR 6TH
Now 6th.It is your choice
If you think that you don't good at
or you want help your team buy
Gem of isolation
With that,first you slow enemy with Solar Blessing and Snipe.It's useful for beginners
2TH OPTION FOR 6TH
If you think you can snipe perfect,select
And Burn them out.With this item, your damage is gonna be between 650 and 700.
Because of incredibly high damage,your healing is gonna rise and Bancroft's Talon works like a Rod of Asclepius
3TH OPTION FOR 6TH
Rod of Asclepius
But if you think you need health and movement speed buy
and have fun with the enemy with
by slowing them thanks for movement speed.It will help you and your team to kill enemy quickly