Taldarin is available as a hero unit to Fenix in Co-op Missions. He can be researched at the Purifier conclave, and from there will commandeer a nearby immortal body. The immortal will gain enhanced stats, as well as the ability to pull enemies together. If Taldarin is killed, he will instantly transfer to the next nearest immortal. Taldarin has a gravimetric overload effect, which causes his attacks to store 25% of the damage dealt to the target. Once the target is killed, it'll explode, dealing all the stored damage to nearby enemy units.
Taldarin gains a barrier which absorbs 200 damage before falling. Can be set to autocast.