OR 

There are several ghosts like Aberrant Spectres, Banshees, and Ghasts which drop multiple low-level herbs and can benefit from either the Ectoplasmator or the Herbicide in the pocket slot.

 

My questions are:

Which of the two items would be preferable for these enemies?

Which bonus exp is more cost effective?

Is it worth the trouble buying the Herbicide or charging an Ectoplasmator?

 

Thanks in advance. c:

 

You don't need to wear them for their effect to work.

Bring both.

You'll get Ghostly essence as you fight the demons, so you can charge it as you kill them :).

 

Doesn't need to be equipped to work. Use both.

 

 

But what if I want more space and only want one pocket item? ;D

One inventory space isn't much of a trade-off, I don't think.  It's up to you though :).

I'd agree with the both case - why limit yourself when you can have both functions and use only 1 inventory space, which is hardly an issue for basic slayer between spring cleaner, magic notepaper and the lack of need for food.

 

My standard fare for all slayer tasks is bonecrusher/plasmator/prayer urns with charming imp, spring cleaner and a stack of magic notepaper and herbicide & seedicide are additions subject to the specific monster.