Full list of all 30 Ascend: Hand of Kul achievements worth 400 gamerscore. It takes around 60-80 hours to unlock all of the achievements on Xbox 360.
You have blessed 20 players
Attained 200 points of physical damage
Acquired a spell from each alignment
Used an Alignment Mask boost to enter a restricted alignment dungeon
Attained 2000 points of armor
You have cursed 20 players
Fully upgraded a spell
Cast 25 Crusade Spells
One of your Ascended Champions defeated another player
Contributed 50,000 points to the Crusade
You made the ultimate sacrifice and Ascended your first Caos
Banished 25 enemies into another player's realm
Slotted 3 runes
Allied humans killed 50 enemies
Defeated 3 player bosses
Spent 30,000 souls or purchased a Soul Pack
Slaughtered 1000 enemies
Looted 30 items or purchased 10 spells
Raised 3 shrines for your God
Decimated 200 enemies
25 enemies know the power of magic from their graves
Did 20 10x combos!
Sent a curse or blessing to another player
Killed 25 enemies
Created first Caos
Consumed 20 humans
Transcend
Read all Highlands lore tomes
Defeat the Highlands Titan
Ascend 3 times