Ah, I stand corrected! ...regarding the relative strength of Templar and (that particular) Doublemove Ferz. Very good point I overlooked.

Now, with regard to the 'Champion' from Omega Chess: In fact, its movement is different, slightly different. The Champion partakes of the Wazir movement, not the Ferz. Here is our Champion:

. . . . . . .
. x . x . x .
. . . x . . .
. x x o x x .
. . . x . . .
. x . x . x .
. . . . . . .

I'm able to say this quickly because I once made the inaccurate comparison myself and stood corrected myself. However, I'm very glad you mentioned it because as you can see, it is a very close relative and also, in my opinion, a very sharp piece.

While I share some of your frustrations with Omega Chess, the Wizard piece does not belong on a shortened board of the type you suggested unless it becomes a multipath-camel-ferz, in which case you may have an improved variant.

When it comes to the Champion, I do not believe any credit to Betza is necessary. Regarding giving Betza credit, I don't know whether he himself was aware that he sometimes reinvented the wheel with pieces such as the 'Waffle' which was for hundreds of years known as the Phoenix in large Shogi variants such as Chu Shogi.

Probably Champion is a lot more powerful because it is not colorbound.