The Hand of Merlin achievements

Lose (or sell) Roland's Horn.

Have an allied reaction trigger on your own turn, while in Normal mode or harder.

Spend 3000 gold.

Defeat The Endless Dreadnought.

Kill an enemy with armor points left, while in Normal mode or harder.

Defeat The Endless Dreadnought, while in Normal mode or harder.

Bring your warband to rank 10, while in Normal mode or harder.

Spend 5 mana in a single fight before Jerusalem, while in Normal mode or harder.

Reach Jerusalem.

Use 4 action points with a single character in one turn.

Survive the Siege of Corbenic without losing any health, while in Normal mode or harder.

Have 6 negative status effects on a single enemy, while in Normal mode or harder.