It should be easier to take keeps during the realm task. Make the keep takes worth a lot of realm task points.
When a realm turns in more branches, stone, or snow they summon caravans that travel to their keeps and the supplies arrived counter goes up.
These caravans should be either much easier to kill so that you can lower enemy keep levels or keep levels should lower just by having supplies arrive safely.
This way players will be more rewarded and willing to take keeps during the realm tasks, since they can contribute a lot to helping their realm win by doing so.
When a realm turns in more branches, stone, or snow they summon caravans that travel to their keeps and the supplies arrived counter goes up.
These caravans should be either much easier to kill so that you can lower enemy keep levels or keep levels should lower just by having supplies arrive safely.
This way players will be more rewarded and willing to take keeps during the realm tasks, since they can contribute a lot to helping their realm win by doing so.