Legendary Artifact
Creature tokens you control get +1/+0 and have vigilance.
{T}: Add one mana of any color. Spend this mana only to cast a planeswalker spell.
{1}{W}, Discard this card: It deals 4 damage to target attacking or blocking creature.
{T}: Add one mana of any color. Spend this mana only to cast a planeswalker spell.
{1}{W}, Discard this card: It deals 4 damage to target attacking or blocking creature.
