New Phage items

I've been trying to come up with some ideas of new items to build out of Phage, since it has such a useful passive effect that I think is somewhat wasted by only using it on Trinity Force (and Furor, sorta).

Phage + Recurve Bow

This would have on-hit damage, and the on-hit movement speed buff would stack up to 5 (is that too many?) times. Killing a unit would give three stacks to replicate the 60 bonus MS from killing a unit with Phage. This would be strong on any attack speed based bruiser like Jax, Udyr or Tryndamere.

Phage + Brutalizer

This would have an active that causes your next auto attack to shred the targets armor (alternatively, this could be applied on the next application of physical damage). This would be more for bursty bruiser's like Vi or assassin Jarvan.

Phage + Cloak of Agility

This would grant bonus movement speed on crits, and be a strong kiting item for ADC's.

These are just rough ideas, and likely flawed, but I'd like to see what the community can come up with, because I can't be the only one who thinks Phage is sort of a wasted item, right?