Here is the full list of all 42 Obsidian Prince achievements.
You have entered Ascension 1!
You have entered Ascension 2!
You have entered Ascension 3!
You have entered Ascension 4!
You have entered Ascension 5!
You have entered Ascension 6!
You have entered Ascension 7!
You have entered Ascension 8!
You have entered Ascension 9!
Chapter 1 Completed!
Chapter 2 Completed!
Chapter 3 Completed!
You found a Treasure!
Charge a Warrior to level 30!
Your ranger has shot a 30 point bullseye. It reached max level!
Your Viking pillaged 30 levels of plunder! Good job!
Have a Beesmaster buzz its way to level 30!
Have a Candlemage burn its way to level 30!
The world is now all moldy. Your mold druid reached level 30!
Moldy had a little lamb... Now she has 30 in her herd! She's max level.
Your Rouge got it's killstreak on. 30 levels worth!
Ring the victory bell! Your Grave Jester has risen to level 30.
Do 25 damage in one go!
Bam! You did 50 damage!
BOOM! You really ripped something apart with that 100 damage.
You've embraced your inner Robin Hood and hit your mark from far, far away.
You stuck a rapier in someone's side and left them standing there with no recourse. It's not the nicest thing to do, but you did it anyway.
Bouncy, sharp and lethal, it's a winning combo.
Wow, I bet you they'll feel that brain freeze for days!
Danger, danger high voltage! You've applied it to an enemy. Now how about water...?
Like a patient spider, you set someone up to step into your trap.
You've thrown some really sick burns at your enemies.
Stabby stabby looty grabby! You've stabbed an enemy taken their wallet and ran off into the shadows.
Who let the dogs out?! You did. Woof!
Mirror, mirror on the wall, who's the deadest of them all? Your enemies, that's who!
Hidden tortoise crouching porcupine. You shielded yourself from damage and made your enemy regret hitting you.
It's compact, fast and great for hitting enemies at close to medium range. You know that better than anyone.
Kill your enemy and bury them, with this ultimate murder hobo multitool.
That's the spirit! Take your enemy and spear it!
You took spray and pray to the next level with this weapon of magic mayhem.
You've embraced your inner Bloody Mary Poppins!
You spawned 1000 cats!