Item concept : Tracker's Bow (Phage + Stinger)

Tracker's Bow : (2800 gold = 1250 + 1100 + 450)

+250 hp +25 ad +45% attack speed +10% cdr

Passive – Rage : Basic attacks (on hit) grant +10 movement speed for 2 seconds. This movement speed bonus can stack up to 3 times. Killing a unit grants +40 additional movement speed for 2 seconds.

=> This item has its own version of the "Rage" passive, like Black Cleaver => Like a Trinity Force, without Sheen

It could be very nice on Tryndamere, Master Yi, Nocturne, some ADCs...