[ckfnpku]

Well, you might want to GoR enslaved creatures or very experienced heavies.

Adding GoR and Wish in again is a piece of cake. Just remove the lines quoted before from the mod. If Tartarian Gate is then nerfed, say by making it d9 and costing 20 deathgems (fairly reasonable I think, for a lvl 9 spell) I don't see why GoR needs to be removed. Making good Tartarian commanders is a costly deal under these circumstances.
Cost for wish could be upped to 150.

Straight removal of the spells seems tacky to me.

I have made a changed Version of the mod that implements this and attached to this post, in case you (Soapyfrog) want it. No need to reupload pretenders to use this.
Oh, and yes, I checked and the spells cost what I intended and so on.

ckfnpku - the noob modmeister

Edit: The server might need to be restarted though. I dunno. Maybe not if the mod is named the same as the current one (replace) and the server is just restarted. And people might want to adjust their pretenders.