Easy "Critical Hit" achievement
Play as the rogue. She can get critical damage through a level twenty buff skill. Find a group of enemies, then use both the damage and the critical buff. Enter the crowd and use the 1000 Daggers skill. You will eventually get a hit that qualifies. Play as the magician until at least level 33. At the "Desert Hundreds" location, purchase a chaos set (helmet, protection, leggings, etc.) with the greatest possible force from the merchant. Revisit the location to force new items to appear. When ready, you should have 99 Wisdom, at least 85 Strength, 1,000 to 1,040 damage, and the Meteorite skill. Return to the "Quarry Dwarfs" and find weak enemies. Attack them with the charged Meteorite skill and you should get critical damage of at least 2,100 points.