Slaad Invasion

 is an Epic Heroic Encounter in Reclamation Rock.

Steps

 * Stop the Invasion
 * Defeat the Limbo Portals (0/5)
 * Defeat the New Portals (0/2)
 * Kill Arth the Executioner

Encounter
Five Limbo portals must be destroyed during the first wave, and two more must be destroyed during the second wave. After destroying all Limbo portals, Arth the Executioner appears and must be defeated.

Arth the Executioner: Arth the Executioner is a Death Slaad boss. It has two main attacks, an AOE fireball attack, and a lingering poison cloud. The Poison cloud slowly follows a player around, and deals heavy damage to any player inside it, continuing to deal (less) damage for a few seconds even after leaving the cloud.

Rewards
Random piece of equipment or or