[?] Primarchs Overview

Primarchs are the combat units in Atlas. Each Primarch type needs to be researched first in the Primarch Tech Tree. Once you've researched it, a Check Mark will indicate that it's eligible for summoning. Keep in mind that the Tech Tree is like a "spellbook"–you will need to summon a Primarch anew after researching a higher level Primarch to gain the benefits of the new increased stats. 

There are a few rules around Primarchs:

• Only one Primarch of each type can be summoned at a time, so you cannot have two Siegers at the same time, for example.
• A Primarch can only exist on the map when it has at least one Troop in its army–any Primarch with 0 Troops is wiped out and disappears/banished.
• Primarchs are summoned at whatever castle is set to their Home.
• Primarchs being summoned are still vulnerable to attack. Make sure your Home is safe from enemy Primarchs, or set it your Home to a Neutral region before summoning a new one.

Each Primarch belongs to a tier, with more powerful ones to be added in later updates. Currently, these Primarchs can be researched:

TIER		Iron	Bronze	ABILITIES
BALANCED	Med ATK Med DEF Med Troop Capacity	Fighter	Destroyer	None
SPEED	Low ATK High DEF Low Troop Capacity	-	Rusher	Can Trap enemy Primarchs at a location (not while it's flying), disabling their abilities for a period of time, and forcing the Trapped target to only be able to attack the Rusher. The duration of Trap is proportional to the number of Troops in the Primarch's army.
CONTROL	Low-Med ATK Med-High DEF V.High Troop Capacity	-	Taunter	When an enemy attacks a Primarch at a location with a Team Taunter present, the Taunter will become the target of the attack instead. After losing 10% of its Troop count, the Taunter's Taunt ability will go on cooldown for an amount of time based on the Taunter's level. A Taunter can only Taunt a Primarch with fewer Troops than itself. A Taunter also only taunts for armies belonging to teammates.
SIEGE	High ATK Low DEF Med Troop Capacity	-	Sieger	Reduces the ATK/DEF bonus granted by an enemy Fort by a flat amount based on Sieger's level. This ability stacks additively with other Siegers at a Fort's location.