War Falcon

Flying
War Falcon can't attack unless you control a Knight or a Soldier.

Thraben Inspector

When Thraben Inspector enters, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

{1}{W}, {T}, Discard a card: Create a 1/1 white Human Soldier creature token.

Other Soldier creatures you control get +0/+1.

Flying
When Kor Skyfisher enters, return a permanent you control to its owner's hand.

Vigilance
When Loyal Cathar dies, return it to the battlefield transformed under your control at the beginning of the next end step.

Other Soldier creatures you control get +1/+0.