Mishra's Workshop
Vintage Masters — mythic
Land
Mishra's Workshop rulings:
2004-10-04: This mana may be used on additional costs to cast the spell, such as Kicker.
2004-10-04: You can spend the mana on costs on the spell’s text.
2004-10-04: The mana can’t be used to pay Echo costs.
2004-10-04: This mana may not be used to pay costs imposed after the spell is initially cast.