Best Talismans for Spear of the Impaler?

Hey all! I've been loving the DLC and have recently got my hands on the spear of the impaler! I've been having tons of fun with it, regardless of how "good" or "bad" people say it is.

The only issue I've had so far is figuring out which talimans to use to best optimize the damage output.

I'm running shard of Alexander, rotten winged, fire scorpion, and then swapping out the last one with bull goat or whatever else. Haven't found a talisman for the last slot that I really like! I'm rocking fire knight armour and helm, so I'm not sacrificing drip for poise, lol.

In my testing, it seems that the rotten wing talisman does more damage than millicent's prosthesis, but if people have more info that would be great!

Any suggestions would be greatly appreciated!