Halcyon Seed

Halcyon Seed is a Boss-Related Item in Risk of Rain 2.

It summons Aurelionite as an ally when the Teleporter is activated.

The summoned Aurelionite has 100%(+50% per stack) damage, and 100%(+100% per stack) maximum health.

It is acquired after defeating Aurelionite in the Gilded Coast. (requires confirmation, and image).