Universal Automaton

Changeling (This card is every creature type.)

Kor Skyfisher

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

Cathar Commando

Flash
{1}, Sacrifice this creature: Destroy target artifact or enchantment.

Veteran Swordsmith

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

Celestial Flare

Target player sacrifices an attacking or blocking creature of their choice.

Sentinel's Eyes

Enchant creature
Enchanted creature gets +1/+1 and has vigilance.
Escape—{W}, Exile two other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

Honorable Scout

When this creature enters, you gain 2 life for each black and/or red creature target opponent controls.

Plains

Prismatic Strands

Prevent all damage that sources of the color of your choice would deal this turn.
Flashback—Tap an untapped white creature you control. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Veteran Armorsmith

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

Obsidian Acolyte

Protection from black
{W}: Target creature gains protection from black until end of turn.

Law-Rune Enforcer

{1}, {T}: Tap target creature with mana value 2 or greater.

Search Party Captain

This spell costs {1} less to cast for each creature you attacked with this turn.
When this creature enters, draw a card.

Ballyrush Banneret

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

Journey to Nowhere

When this enchantment enters, exile target creature.
When this enchantment leaves the battlefield, return the exiled card to the battlefield under its owner's control.

Legion Conquistador

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

Veteran Armorer

Militia Bugler

Vigilance (Attacking doesn't cause this creature to tap.)
When this creature enters, look at the top four cards of your library. You may reveal a creature card with power 2 or less from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Swift Response

Remote Farm

This land enters tapped with two depletion counters on it.
{T}, Remove a depletion counter from this land: Add {W}{W}. If there are no depletion counters on this land, sacrifice it.

Battalion Foot Soldier

When this creature enters, you may search your library for any number of cards named Battalion Foot Soldier, reveal them, put them into your hand, then shuffle.

Aven Riftwatcher

Flying
Vanishing 3 (This creature enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When this creature enters or leaves the battlefield, you gain 2 life.

Relic of Progenitus

{T}: Target player exiles a card from their graveyard.
{1}, Exile this artifact: Exile all graveyards. Draw a card.

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}: This creature deals damage equal to the number of +1/+1 counters on it to target attacking or blocking creature.

Deftblade Elite

Provoke (Whenever this creature attacks, you may have target creature defending player controls untap and block it if able.)
{1}{W}: Prevent all combat damage that would be dealt to and dealt by this creature this turn.

Gempalm Avenger

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

Thraben Inspector

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