Which of the following hereos has ability to amplify damage of Every other team member irrespective of them being near to him?..(they can be anywhere in the map but they will get tat extra dmg addde to their attack)...

Lycan's Wolves ability (specifically his Howl) provides a global damage amplification buff to all allied heroes on the map, regardless of their distance from Lycan. This is a true global aura that affects teammates anywhere. Drow Ranger's Marksmanship and Vengeful Spirit's Vengeance Aura are not global, and Luna has no damage amplification ability.