Here is the full list of all 70 Rayna Survivors achievements.
Slay 10000 Relenti
Slay 10000 Lyner
Slay 10000 Vagnun
Slay 10000 Volossi
Slay 10000 Tiskor
Slay 10000 Buontt
Slay 10000 Keyrigg
Slay 10000 Kirrug
Slay 10000 Knorgan
Slay 10000 Koygur
Slay 10000 Krigo
Slay 10000 Olobo
Slay 10000 Poeau
Slay 10000 Skel
Slay 10000 Skeliar
Slay 10000 Skelis
Slay 10000 Skelnos
Slay 10000 Skinner
Slay 10000 Stalker
Slay 10000 Starnar
Slay 10000 Talon
Slay 10000 Tearro
Slay 10000 Vespid
Slay 10000 Pwee
Slay 10000 Fornir
Kill Wjolof 10 Times
Kill 25000 Enemies in Howling Glacier
Destroy 300 Root Enemies in Howling Glacier
Break 500 Root Pods in Howling Glacier
Obtain 30 Legendary Upgrades in Howling Glacier
Gather 25000 Upgrade Stones in Howling Glacier
Level Up 300 Times in Howling Glacier
Kill Gurdin 10 Times
Kill 25000 Enemies in Heartless Cliff
Destroy 300 Root Enemies in Heartless Cliff
Break 500 Root Pods in Heartless Cliff
Obtain 30 Legendary Upgrades in Heartless Cliff
Gather 25000 Upgrade Stones in Heartless Cliff
Level Up 300 Times in Heartless Cliff
Kill Folkry 10 Times
Kill 25000 Enemies in Verdant Backwoods
Destroy 300 Root Enemies in Verdant Backwoods
Break 500 Root Pods in Verdant Backwoods
Obtain 30 Legendary Upgrades in Verdant Backwoods
Gather 25000 Upgrade Stones in Verdant Backwoods
Level Up 300 Times in Verdant Backwoods
Kill Sildorul 10 Times
Kill 25000 Enemies in Luino's Sanctum
Destroy 300 Root Enemies in Luino's Sanctum
Break 500 Root Pods in Luino's Sanctum
Obtain 30 Legendary Upgrades in Luino's Sanctum
Gather 25000 Upgrade Stones in Luino's Sanctum
Level Up 300 Times in Luino's Sanctum
Kill Thrixun 10 Times
Kill 25000 Enemies in Fisherman's Nest
Destroy 300 Root Enemies in Fisherman's Nest
Break 500 Root Pods in Fisherman's Nest
Obtain 30 Legendary Upgrades in Fisherman's Nest
Gather 25000 Upgrade Stones in Fisherman's Nest
Level Up 300 Times in Fisherman's Nest
Unlock All Upgrades
Collect 1 Million Black Diamonds
Slay 10 Million Enemies
Slay 200K Roots
Slay 100 Map Bosses
Craft All Classes
Craft All Map Tickets At Least Once
Craft 1000 Black Diamonds
Complete Kill Log
Complete All Objectives