Your Team, Heroes, Titans, and Pets need Experience to level up.
Team experience[]
Team experience increases your Team Level, and is obtained by completing Campaign missions and Daily Quests.
For completing a campaign mission, the amount of team experience earned is the same as the amount of Energy spent on the mission – except the Boss Missions of the last three chapters, which reward 30 team experience but cost only 24 energy:
- Chapter 13: Escape from Winter
- Chapter 14: Heart of the Capital
- Chapter 15: Eternal Darkness
Hero experience[]
Hero experience is obtained by completing Campaign missions or by using EXP Potions. In Campaign missions the experience per hero is the mission experience divided by the number of Heroes.
Titan experience[]
Titan experience is obtained by using Titan Potions.
Pet experience[]
Pet experience is obtained by using Pet Potions.