Tiers

Tier 0

Entry Bosses - These mobs have shorter lockouts and drop Kunark currency and epic pieces.  This is your intro to raiding on Convergence.

Tier 0.5

Intermediate Bosses - These mobs are your pathway to Plane of Sky and also drop Kunark currency and epic pieces.  These mobs will begin to challenge you.

Tier 1

Tier 1 is spread across 2 expansions.  Velious Tier 1 and Plane of Sky.  

Tier 2

Tier 2 is spread across 2 expansions as well.  Veeshan's Peak and Velious Tier 2

Tier 3

Tier 3 is exclusive to Velious.

Tier 4

Tier 4 is spread across 2 expansions - Velious Tier 4 and Luclin Tier 1.

Tier 5

Tier 5 is spread across 2 expansions - Velious (Growth and Mischief) and Luclin Tier 2.

Tier 6

Tier 6 is spread across 2 expansions - Velious (Sleepers) and Luclin Tier 3.

Tier 7

Tier 7 is exclusive to Luclin.  It consists of Lord Seru and the snakes in Temple of Ssra.

Tier 8

Tier 8 is exclusive to Luclin.  It consists of Vex Thal.