Other

There are other resources too that help players upgrade their assets - Heroes, Weapons and Armor.

They can be obtained by winning Silver Tesseracts. The drop rate depends on the number of Heroes in your squad.

Gear wheel can be obtained by Common Heroes. Wrench by Epic Heroes. And Experience card by Legendary Heroes.

Name	Can be used for
Gear wheel	Weapon upgrade
Wrench	Armor upgrade
Experience card	Hero upgrade