Category 12
Billy is best at sticking to people and cc spam, which makes things like Scourge and Colossus so core on him, I personally find duration extender and trophy to be super effective on him since he doesnt need to focus towers as much and is moreso walking map pressure. The hardest part about this guy is learning how to buy around YOUR team comp (if the team is mobile, grab slowing or knockdown for your team, or curse to shutdown carries)0 items