Yikes? For 2 damage?
Attack with all the rest.
Go to it.
(U,U) Plains x2
(U,U) Mt x2
(U,U) Forest x2
(U,U) Island x2
(U,U) Swamp x2
(U) Spitfire Bastion (T: Add R to my mana pool.; 2R, T: ~ deals 3 dmg to target creature or player)
One With the Wind (Enchanted creature gets +2/+2 and has flying)
(T) Sky Terror (2/2; Flying, menace)
(U) Ravenous Daggertooth (3/2; Enrage-Whenever ~ is dealt dmg, I gain 2 life)
(U) Looming Altisaur (3/9; Flying from One With the Wind) *Windy*
(U) Queen's Bay Soldier (2/2)
(U) Encampment Keeper (1/1; First Strike; 7W, T, Sac ~: Creatures I control get +2/+2 ueot)
(U) Fire Shrine Keeper (1/1; Menace; 7R, T, Sac ~: It deals 3 dmg to up to two target creatures)
(T) Shining Aerosaur (3/4; Flying)
(T) Legion Conquistador (Vampire Soldier, 2/2, When ~ ETB, search library for more of ~.)
(T) Headwater Sentries (Merfolk Warrior, 3/6, ) )~+1/+1~
(T) Ruthless Knave (Orc Pirate, 3/2, 2B, Sacrifice a creature: Create two colorless Treasure artifact tokens with "T, sacrifice this artifact: Add one mana of any color to your mana pool." Sacrifice three Treasures: Draw a card.)
(T) Ancient Brontodon (Dino, 9/9, )
(S) Bishop of the Bloodstained (Vampire Cleric, 3/3, When ~ ETB, Target opponent loses 1 life for each vampire you control.)
Graveyard: Skittering HeartStopper, March of the Drowned, River Herald's Boon, Blight Keeper, Air Elemental, Mavren Fein, Dusk Apostle, Ritual of Rejuvenation, Headstrong Brute
You can do 8 flying that I can't stop and you only need to block the bronto with 1 creature even if you only attack with the two biggies, that's 6 this turn and your next. Plus you gain 2 from the Daggertooth.
Not sure why you blocked a 2/2 with your Encampment Keeper? What would have been game in your next turn easy.
That doesn't even account for the other 5 cards in your hand.