Here is the full list of all 10 Reaper - there are Tale of a Pale Swordsman achievements.
Slay Iraess.
Travel 1000 miles.
Get 5 skill cards of a single skill.
Win a streak of 10 battles in a row.
Slay 1000 enemies.
Resurrect during battle.
Get fully equipped.
Win 3 battles.
Collect 300 000 gold.
Achieve Level 60 in Dark Harvest mode.