Crackling Emergence

Enchant land you control
Enchanted land is a 3/3 red Spirit creature with haste. It's still a land.
If enchanted land would be destroyed, instead sacrifice this Aura and that land gains indestructible until end of turn.

Blademane Baku

Whenever you cast a Spirit or Arcane spell, you may put a ki counter on this creature.
{1}, Remove X ki counters from this creature: For each counter removed, this creature gets +2/+0 until end of turn.

Bestial Fury

Enchant creature
When this Aura enters, draw a card at the beginning of the next turn's upkeep.
Whenever enchanted creature becomes blocked, it gets +4/+0 and gains trample until end of turn.

Scorched Rusalka

{R}, Sacrifice a creature: This creature deals 1 damage to target player or planeswalker.

Kami of Fire's Roar

Whenever you cast a Spirit or Arcane spell, target creature can't block this turn.

Frost Bite

Frost Bite deals 2 damage to target creature or planeswalker. If you control three or more snow permanents, it deals 3 damage instead.

Lightning Strike

Lightning Strike deals 3 damage to any target.

Furnace Spirit

Haste
{R}: This creature gets +1/+0 until end of turn.

Frostling

Sacrifice this creature: It deals 1 damage to target creature.

Glitterfang

Haste
At the beginning of the end step, return this creature to its owner's hand.

Blood Age General

{T}: Attacking Spirits get +1/+0 until end of turn.

Soul of Magma

Whenever you cast a Spirit or Arcane spell, this creature deals 1 damage to target creature.