On her sparkling luminescence, Glory

[Bob Schroeck]

(assuming Bob
goes with her canon origins without tweaking)

I will be, yes.

So, Buffy + TrollHammer + Wrecking Ball = more dmg than a
fast moving 18 wheeler?

The Troll Hammer is explicitly identified in the course of season 5 as a Celestial weapon, like God's Toothpick; by the end of the season it's actually called the Troll God's Hammer.
So, yes.  Although the hammer did more than the wrecking ball did.
-- Bob
---------
Then the horns kicked in...
...and my shoes began to squeak.