Argh, I can't decide between all those Instants in my Maybeboard!

You only have 3 soldiers that have anything to do with heroic. Not really a heroic deck. Add Akroan Skyguard and Hero of Iroas to make your enchantment-auras cheaper. Add more enchantment aura's in general and instead of Odric, Master Tactician, add Odric, Lunarch Marshal to copy whatever effects your auras have bestowed upon your heroics to your other creatures that don't have the same effect. Also, make it 4 Launch the Fleet, only one for such an extremely useful card is foolish. Instead of Brawler's Plate, use Veteran's Armaments. Definitely get a Honor of the Pure and either Brave the Elements to make all your dudes unblockable for 1 mana or for 2 mana Bathe in Light but an extra heroic trigger. Get rid of Elspeth, she is useless because sadly PW abilities don't trigger heroic, Ajani Goldmane is much more useful. If you really want more tokens on the field, I recommend Hero of Bladehold instead. Also, Flagstones of Trokair to thin out your deck of lands fast, but it's a little expensive, or just a few Evolving Wilds

Also, multi target spells when it comes to instances and sorceries are key in your mainboard, so also Blessed Alliance, Tandem Tactics, Redeem.

I would remove Captain of the Watch and Field Marshal, altho they are useful lords, Honor of the Pure is not only cheaper then them, but it's also more difficult to remove. The simplest removal spells can destroy both of them and Captain of the Watch is ridiculously damn slow. You won't be getting him out very fast. Also, Sandstone bridge, is not very useful here, it does not trigger heroics.

Thanks for the suggestions! Not everything is based on Heroic triggers for this version of the deck, and I left in Captain of the Watch because Preeminent Captain combos so well with her.