Ballynock Trapper

{T}: Tap target creature.
Whenever you cast a white spell, you may untap this creature.

Brigid, Who's Seen Some Stuff

Vigilance
Nimble (This creature can't be blocked by creatures with power 3 or greater.)
Kithkin you control have thoughtweft. (A creature with thoughtweft has all printed keyword abilities of other creatures you control with thoughtweft.)

Burrenton Bombardier

Flying
Reinforce 2—{2}{W} ({2}{W}, Discard this card: Put two +1/+1 counters on target creature.)

Galepowder Mage

Flying
Whenever this creature attacks, exile another target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Ballynock Cohort

First strike
This creature gets +1/+1 as long as you control another white creature.

Kithkin Billyrider

Ballyrush Banneret

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

Brigid, Hero of Kinsbaile

First strike
{T}: Brigid deals 2 damage to each attacking or blocking creature target player controls.