Familiars are NPCs that you can assign to certain tasks, such as leveling up Champions, clicking the monsters, or using ultimates. Depending on the assigned task, a Familiar will click a certain number of times per second/minute.

In this pack:

Lulu the Hollyphant Familiar
4 Epic Potions of Speed
4 Epic Potions of Giant's Strength
4 Epic Potions of Clairvoyance
1 Potion of Polish