Plains

Swift Justice

Until end of turn, target creature gets +1/+0 and gains first strike and lifelink.

Squad Captain

Vigilance (Attacking doesn't cause this creature to tap.)
Squad Captain enters with a +1/+1 counter on it for each other creature you control.

Argivian Phalanx

This spell costs {1} less to cast for each creature you control.
Vigilance (Attacking doesn't cause this creature to tap.)

Veteran Swordsmith

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

Destroy Evil

Choose one —
• Destroy target creature with toughness 4 or greater.
• Destroy target enchantment.

Hyena Umbra

Enchant creature
Enchanted creature gets +1/+1 and has first strike.
Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

The Fair Basilica

The Fair Basilica enters tapped.
{T}: Add {W}.
{1}{W}, {T}, Sacrifice The Fair Basilica: Draw a card.

Veteran Armorsmith

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

Battalion Foot Soldier

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

Fortify

Choose one —
• Creatures you control get +2/+0 until end of turn.
• Creatures you control get +0/+2 until end of turn.

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.

Ballyrush Banneret

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

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 Deftblade Elite this turn.

Search Party Captain

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

Feat of Resistance

Put a +1/+1 counter on target creature you control. It gains protection from the color of your choice until end of turn. (It can't be blocked, targeted, dealt damage, enchanted, or equipped by anything of that color.)