WIP: (!870) Boromir Last Stand

Description

Boromir

• added passive ability Last Stand
• when Boromir's health is 25% or below, he gains +33% damage and armor
• added additional death animation

 

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.