Vokun, the Shadow

Ward —Vokun controller adds {2} to his mana pool.
{2}{u}, {t}: Create a 3/3 blue Storm Atronach
legendary creature token with "when this creature dies,
deal 2 damage to any target."
{x}{x}{b}, {t}: Put a -1/-1 counter on X target creatures.
{2}{r}, {t}: Create a 2/2 red Fire Atronach legendary
creature token with "{r}: deal 1 damage to any target.
When this creature dies, deal 1 damage to all creatures."
When Vokun leaves the battlefield, create
Mask of Vokun, a legendary colorless Equipment