Recently I have been really wanting to play cracken but i just cant get right fit for a fleet. Thinking about his ability I thought a fun modification of it would read as "While a friendly ship is defending against a larger base ship treat the attack as obstructed." This would open up a lot more flexibility with fleet composition and i believe still be balanced in the grand scheme of fleets.
This just seemed like a cool idea to myself for a commander ability and wanted to share my thoughts