Change to Clan War Clan Castle Donation's
You can only Donate to your clan war clan castle. No limit's, Add/Remove as much as you want. Its your base, so why not have it your troop's as well! Is not like you get XP for donating anyways.
This would be way better for war, It eliminates a Town hall 10 donating over powered troop's to a town hall 5. Also it reduces the cost of the high level player's having to donate to every base( If they want the best chance to win ). Battles would be more balanced for lower level player's.