There is not item for which hero

It totally depend on which 5 hero is ur opponent
And wat hero ur teammate is
Wat is the roles u play in team (dps, tanker, buff or debug etc)

Noobs always have a fixed plan for all encounters
They are PREDICTABLE.

Basic geared up type
Hunters - movespeed / trap + Dmg server
Tank - regen and str (Dmg + hp + regen )
Caster - regen and pool
Dmg dealer - Atk speed crit

U really need to plan different based on 9 other hero in the games