Summary
- - It is an event with no fixed schedule. Keep an eye in the top menu to find it when it's available
- - Different heroes can produce different Emblems, check the list
- - To be able to call a hero you need to collect the required Emblems for that hero
- - When you Rub lamps you have a chance to get the Hero Emblem (It's not 100% guaranteed!)
- - You can Rub lamps if you have the required hero(es)
- - You can Rub with gold instead of lamps
- - Duty Call Ultimate has multiple heroes requirement, you need to own all the heroes to rub the lamp
Check in the top menu for the Duty Call icon (it is an event with no fixed schedule, so this icon it will be available exclusively when the event is running)

1 - Check which emblem your hero can summon
2 - Lamps you own
3 - Selected Hero
4 - Emblem your hero can produce
5 - Owned Emblems
6 - Lamp Cost to rub
Duty Call - Ultimate

1 - Emblem that can be summoned
2 - How many heroes it requires (Heroes are showed beside the central Emblem, minimum 2 heroes requirement and maximum 4 heroes requirement)
3 - Lamps you own
4 - Emblem your heroes can produce
5 - Owned Emblems
6 - Lamp Cost to rub