Help with my new deck, need a side board, help

[Saetia]

Creatures white x17;
Serra Angel x4
Aegis Angel x1
Odric, Lunarch Marshal x1 (legendary creature)
Expidition Raptor x1
Ondu Greathorn x1
Mankindi Patrol x1
Kor Sky Climber x1
Cliffside Lookout x1
Drogskol Lookout x1
Spectral Shepard x1
Serene Steward x2
Stone Haven Medic x2

Sorcery white x1;
Chaplain's Blessing x1

Instants White x8;
Gideon's Reproach x1
Immolating Glare x1
Tenacity x1
Enduring Victory x1
Smite the monstrous x1
Tandem Tactics x1
Inspired Charge x1
Encircling Fissure x1

Land: Plains x11 Sandstone bridge x1
Meandering River x2 Island x11

Creatures Blue x6;
Sphinx of Magosi x1
Stitched Mangler x1
Niblis of Dusk x1
Air Servant x1
Wave Wing Elemental x2

Sorcery Blue x2;
Pieces of the Puzzle x1
Pore Over the Pages x1

Instants Blue x6;
Negate x1
Contradict x1
Dispel x1
Disperse x1
Sweep Away x2