Flame-Kin Zealot

When this creature enters, creatures you control get +1/+1 and gain haste until end of turn.

Belligerent Hatchling

First strike
This creature enters with four -1/-1 counters on it.
Whenever you cast a red spell, remove a -1/-1 counter from this creature.
Whenever you cast a white spell, remove a -1/-1 counter from this creature.

Foundry Champion

When this creature enters, it deals damage to any target equal to the number of creatures you control.
{R}: This creature gets +1/+0 until end of turn.
{W}: This creature gets +0/+1 until end of turn.

Spitemare

Whenever this creature is dealt damage, it deals that much damage to any target.

Savai Thundermane

Whenever you cycle a card, you may pay {2}. When you do, this creature deals 2 damage to target creature and you gain 2 life.

Zirda, the Dawnwaker

Companion — Each permanent card in your starting deck has an activated ability. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.)
Abilities you activate that aren't mana abilities cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana.
{1}, {T}: Target creature can't block this turn.

Spark Trooper

Trample, lifelink, haste
At the beginning of the end step, sacrifice this creature.