Broodmother + Lifestealer

Why this works

Controlling the map with two heroes at once becomes a real possibility. The whole idea revolves around Lifestealer using Infest on one of Broodmother's Spiderlings. This gives him a mobile, disposable taxi to join Broodmother's aggression across her entire web network. A solo push from Broodmother can instantly turn into a lethal gank when Lifestealer bursts out to help secure a kill on an unsuspecting hero. It forces opponents to respect every single group of spiders, which often creates the space Lifestealer needs to farm safely until the perfect moment to strike arrives.

The effectiveness of this pairing really depends on how Broodmother’s own game is going. If she gets a strong start and builds a large spider army, the Infest threat is constant and oppressive. However, if opponents shut Broodmother down early with strong area-of-effect spells, she can't provide the spider swarm needed to make the play work. Enemy teams will try to clear the spiders constantly, not only to contain Broodmother but also to limit Lifestealer's options. It's a combo that can accelerate a lead, but it doesn't create one on its own.