Hello Lord Russ Fletcher,

is easy , if someone bombs your spirit wardens i think you know that you will not get brawl point for the enemy spells , but if the opponent in brawl attack you with units , and you have just spirit wardens and nothing else than you can have a chance to earn brawl points if you defeat some opponent units.

I wish you a great day ahead and enjoy the game !

When they kill your spirit wardens they do get brawl points.  A full set of wardens is worth about 60k points I believe.  

about 21k points you get with only killing the spirits in the brawl @an oppponent castle, which has all wardens.

The points you earn from a castle with a full set of spirit wardens depends on how upgraded that castle's spirit lost arts are, which determines many wardens they can have in their castle at one time.  Higher level of the Spirit Limit lost arts equals more spirit wardens.  The spirit wardens are worth the same amount of points as the troops they are made to help protect.

Your Skyvoice champion is also a major factor in the brawl points earned as well.