Enlistment Officer

First strike
When Enlistment Officer enters, reveal the top four cards of your library. Put all Soldier cards revealed this way into your hand and the rest on the bottom of your library in any order.

Sergeant-at-Arms

Kicker {2}{W} (You may pay an additional {2}{W} as you cast this spell.)
When Sergeant-at-Arms enters, if it was kicked, create two 1/1 white Soldier creature tokens.

Thriving Heath

Thriving Heath enters tapped. As it enters, choose a color other than white.
{T}: Add {W} or one mana of the chosen color.

Secure the Scene

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

Veteran Swordsmith

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

Captain's Call

Create three 1/1 white Soldier creature tokens.

Daysquad Marshal

When Daysquad Marshal enters, create a 1/1 white Human Soldier creature token.

Plains

Brimaz, King of Oreskos

Vigilance
Whenever Brimaz, King of Oreskos attacks, create a 1/1 white Cat Soldier creature token with vigilance that's attacking.
Whenever Brimaz blocks a creature, create a 1/1 white Cat Soldier creature token with vigilance that's blocking that creature.

Raise the Alarm

Create two 1/1 white Soldier creature tokens.

Commanding Presence

Enchant creature
Enchanted creature gets +2/+2 and has first strike and "Whenever this creature deals combat damage to a player, create a 1/1 white Human Soldier creature token."

Cenn's Tactician

{W}, {T}: Put a +1/+1 counter on target Soldier creature.
Each creature you control with a +1/+1 counter on it can block an additional creature each combat.

Ballyrush Banneret

Kithkin spells and Soldier spells you cast cost {1} less to cast.

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.)