Lone Druid + Zeus

Why this works

Pressuring the map with a split-pushing Lone Druid becomes a bit safer with a Zeus on the team. If the enemy tries to jump the Spirit Bear, Zeus can contribute damage from anywhere on the map using Thundergod's Wrath. This global reach can turn a simple gank attempt into a lost fight for the opponents, forcing them to commit more heroes than they'd like to deal with a single push. This interaction lets Lone Druid play more aggressively, taking towers and farming dangerous parts of the map while his team secures other areas, which can lead to a gold advantage over time.

This forces the enemy team to make tough decisions. They either have to over-commit to stop Lone Druid, leaving the rest of the map open for Zeus's team, or they cede objectives. The opposing side's goal is to coordinate and burst down the real Lone Druid to neutralize the bear, or to focus Zeus first in teamfights before he can get his spells off. Since neither hero provides much in the way of lockdown or defensive support for the other, good coordination from the enemy can often disrupt their game plan, keeping the overall advantage fairly small.