Here is the full list of all 30 Ascend: Hand of Kul achievements.
Read all Highlands lore tomes
Purchase or discover a spell from each alignment
Transcended
Fully upgrade any spell
Bless 20 players
Use an Alignment Mask boost to access a restricted alignment dungeon
Have one of your Ascended Champions defeat another player
Banish 25 enemies into another player's realm
Attained 200 points of physical damage
Defeat the Highlands Titan
Attained 2000 points of armor
Cast 25 Crusade Spells
Curse 20 players
Spend 30,000 souls or purchase a Soul Pack
Reach player level 50 or Ascend 3 times
Eat 20 Humans
Get humans to kill 50 enemies for you
Defeat 3 player bosses
Kill 1000 enemies
Slot 3 runes of any type into your armor or weapons
Contribute 50,000 points to the Crusade
Raise 3 shrines for your God
Kill 25 enemies with spells
Looted 30 items or purchased 10 spells
Ascend your first Caos
Kill 200 enemies
Perform 20 10-hit combos
Kill 25 enemies
Send a curse or blessing to another player
Create your first Caos and bind them to a god