Plains

Ancestral Blade

When Ancestral Blade enters, create a 1/1 white Soldier creature token, then attach Ancestral Blade to it.
Equipped creature gets +1/+1.
Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

War Falcon

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

Attended Knight

First strike
When Attended Knight enters, create a 1/1 white Soldier creature token.

Veteran Armorsmith

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

Piety Charm

Choose one —
• Destroy target Aura attached to a creature.
• Target Soldier creature gets +2/+2 until end of turn.
• Creatures you control gain vigilance until end of turn.

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.

Guardians' Pledge

White creatures you control get +2/+2 until end of turn.

Daru Stinger

Amplify 1 (As this creature enters, put a +1/+1 counter on it for each Soldier card you reveal in your hand.)
{T}: Daru Stinger deals damage equal to the number of +1/+1 counters on it to target attacking or blocking creature.

Veteran Swordsmith

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

Akrasan Squire

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Gideon's Lawkeeper

Unified Strike

Exile target attacking creature if its power is less than or equal to the number of Soldiers on the battlefield.