The Unliving achievements

Defeat the second boss

Kill 500 enemies with a basic or scythe attack

Raise 1,000 undead

Defeat the first boss

Raise 100 undead

Use an echo for a spell or rune

Kill 100 enemies with a basic or scythe attack

Consume health when casting

Use bone for a spell or rune

Kill 25 enemies with a basic or scythe attack

Lose a health vial without dying

Kill an enemy with a basic or scythe attack