(!976) Morgul Blade Fixes

GR.org Link

Link to GameReplays if this merge requests needs discussion (also add "discussion label")

 

Description

• Morgul Blade will no longer turn Monsters and Ring Heroes into Wights,
• Morgul Blade can no longer target flying units,

 

Checklist

I have:

• Tagged my change with the ;,; comment block.
• Ensured that this merge request changes exactly one thing.
• Attached the proper labels to this merge request.
• Added the Merge Request number in the title. e.g. (!42)
• Added a devlog entry for this change.
• Tested my code.