Martyr's Soul

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
When Martyr's Soul enters, if you control no tapped lands, put two +1/+1 counters on it.

Nightsquad Commando

When Nightsquad Commando enters, if you attacked this turn, create a 1/1 white Human Soldier creature token.

Veteran Swordsmith

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

Legion Conquistador

When Legion Conquistador enters, you may search your library for any number of cards named Legion Conquistador, reveal them, put them into your hand, then shuffle.

Whisper Squad

{1}{B}: Search your library for a card named Whisper Squad, put it onto the battlefield tapped, then shuffle.

Dusk Legion Zealot

When Dusk Legion Zealot enters, you draw a card and you lose 1 life.

Gempalm Avenger

Cycling {2}{W} ({2}{W}, Discard this card: Draw a card.)
When you cycle Gempalm Avenger, Soldier creatures get +1/+1 and gain first strike until end of turn.

Veteran Armorer

Plains

Icatian Javelineers

Icatian Javelineers enters with a javelin counter on it.
{T}, Remove a javelin counter from Icatian Javelineers: It deals 1 damage to any target.