The Hard Morytania Diary unlocks one of RuneScape gold the most widely used non-tradeable items in the game:

Bonecrusher: Automatically crushes bones dropped by monsters for passive Prayer XP. This item significantly reduces the cost and time needed to train Prayer and is essential for PvM and Slayer training.

Unlimited teleports to Burgh de Rott: Provides the closest teleport to many useful activities,such as:

Temple Trekking

Cremating shades

Sanctifying oil

Completing certain clue scroll steps

The Bonecrusher alone makes this diary a game-changer for any account focused on efficient Prayer leveling.
Why Completing Achievement Diaries Is Worth Your Time

While some diaries offer indirect financial gains through more efficient gameplay,their primary value lies in quality of life improvements. These unlocks reduce tedious gameplay loops and provide fast travel,additional inventory space,better combat setups,and passive XP gains—all saving you time and money in the long run.

For players managing multiple accounts or OSRS accounts for sale,having diaries completed boosts account value and attractiveness on buy OSRS GP the market. For solo players,diaries simply make the game more enjoyable and less grindy.