When Orcs are defeated in duels or during Orc Missions, they will be transferred to the Halls of the Dead.
In the Halls of the Dead, defeated Orcs will reside here temporarily until resurrected. If they are not resurrected within the specified time limit, then they will be permanently lost.
To resurrect an Orc, simply spend the specified number of Resurrection Tokens within the defined time limit. Resurrection Tokens can be acquired either from defeating your Nemesis in Campaign Missions, or as a random reward from the Palantir. Once you resurrect your Orc, it will be restored to your Roster, where you can use it again in battle.