Here is the full list of all 18 Rogue Wizards achievements.
Fire Wizard
Ice Wizard
Find a legendary item
Find a rare item
Acquire a pet
Earth Wizard
Sky Wizard
Nature Wizard
Cosmic Wizard
Merrol's Grandfather
Leader of the Wizards Guild
Stockpile 500,000 gold
Reach Level 50
Died with a health potion, how embarrassing.
Kill 20 Greedlings
Tried to kill 100 hallucinations
Find a divine item
Discover 50 mimics