Electric Blue's 1.10 Wolf Guide

[Casperi]

Rabies has only 1 synergy for its poison damage, a %18 increase in poison damage per skill spent in Poison Creeper. So it takes 40 skills to invest in rabies. But there is a certain item, the Carrion Wind Unique Ring that gives 21 skill points to Poison Creeper. With the use of the ring, investment of rabies takes only 20 skill points.

Are you sure about this? I thought that +skills from items did not count towards synergy bonuses.