The Echo of Varshan has a loot table that includes a variety of items, including:
The chance of a specific item dropping is determined by its rarity. Unique items are the rarest and have the lowest chance of dropping. Legendary items are less rare than unique items and have a higher chance of dropping. Rare items are the most common and have the highest chance of dropping.
The Echo of Varshan also has a chance to drop gold and crafting materials.
The loot that drops from the Echo of Varshan is determined by the World Tier you are playing on. On higher World Tiers, the Echo of Varshan has a higher chance of dropping legendary and rare items.