Edit: I actually got Raze in Gogo's cave. Some enemies have changed and/or moved.
Raze was also available in Daryl's tomb from the, iirc, Shokan.
For BNW 2.0, for Raze, I couldn't find this enemy after 15 straight battles in this forest:
Allosaurus: Forest Outside Thamasa (WoR)
This one also did not cast it:
Revenant: Phoenix Cave
From Gau's rage list change log in the readme, it looks like the revenant no longer casts raze?
--> Revenant --- 2/3 to Holy (was Raze); 1/3 to Blaze (was Firestorm)
As suggested, one of Gau's Rage abilities does have Raze, if these present problems, assuming the enemy is available before the Tower of Kefka.
--> Shokan ----- (i.e. Orog) 2/3 to Dark; 1/3 to Raze
Also, this is my second time playing BNW, and both times I did **not** get this from Hidon:
Shield
Hidon (Ebot's Rock)
I don't know how to get it.
(When you google for Strago's lore in BNW, you find this page)