[Boron]

In SP i often buy full 125 PD.
In MP you normally either do 2-3 PD or 10-11 Points to occasionally detect scouts.

There is one special occasion in MP when i buy 125 points of PD:
If i have hoarded lots of fever fetishes and can cast Haunted Forest.

I wish for the ulm alchemist god and make the alchemist stone.
Then iirc you get 45 gold per alchemized firegem.
If you have hoarded e.g. 500 fever fetishes you get then 45*500=22500 Gold per turn if you alchemize.

As long as you can keep the haunted forest up this rocks.
Hundreds of manikins are not so easy to kill and require more than a single SC or similiar.
So your opponent has to concentrate his attacks and thus you can easier decimate him.