Holy wrench

The Holy Wrench is a reward for the completion of the Rum Deal quest. If players have it in their inventory when they drink a prayer potion or super restore potion, they will regain an additional 1-3 Prayer points, depending on your Prayer level, although many players report an increase of only one point regardless of prayer level. If a player loses their holy wrench, they can obtain a new one by talking to Davey on Braindeath Island. Having more than one holy wrench in your inventory does not further increase prayer gain.

Some players find the wrench rather useless, as by replacing the inventory space the wrench takes up with a super restore potion or prayer potion, the player may receive more points overall per inventory. This is entirely dependent upon how many points that player receives versus how many pots they are carrying. At 10 4 dose pots with a 3 point bonus player will receive 120 points, just 4 points less than another 4 dose pot. So at 11 pots the the wrench will increase overall prayer time more than another pot would. However, assuming a prayer bonus of +1 point per dose, the player would need 31+ prayer potions to benefit from the wrench.