Frontline Strategist

Morph {W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When Frontline Strategist is turned face up, prevent all combat damage non-Soldier creatures would deal this turn.

Plains

Raise the Alarm

Create two 1/1 white Soldier creature tokens.

Hold for Ransom

Enchant creature
Enchanted creature can't attack or block and has "{7}: Hold for Ransom's controller sacrifices it and draws a card. Activate only as a sorcery."

Unwavering Initiate

Vigilance
Embalm {4}{W} ({4}{W}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a white Zombie Human Warrior with no mana cost. Embalm only as a sorcery.)

Gale Swooper

Flying
When Gale Swooper enters, target creature gains flying until end of turn.

Rebuke

Enchant creature
Enchanted creature gets +2/+2, has first strike, and is a Knight in addition to its other types. (It deals combat damage before creatures without first strike.)

Concordia Pegasus

Secure the Scene

Exile target nonland permanent. Its controller creates a 1/1 white Soldier creature token.

Staunch Shieldmate

Backup Agent

When Backup Agent enters, put a +1/+1 counter on target creature.

Sky Crier

Flying, lifelink
{3}{W}: You and target opponent each draw a card.

Boros Mastiff

Battalion — Whenever Boros Mastiff and at least two other creatures attack, Boros Mastiff gains lifelink until end of turn. (Damage dealt by a creature with lifelink also causes its controller to gain that much life.)