Mishra's Workshop
Land
: Add 
. Spend this mana only to cast artifact spells.
Though he eventually came to despise Tocasia, Mishra listened well to her lessons on clarity of purpose. Unlike his brother, he focused his mind on a single goal.
Kaja Foglio
Masters Edition IV (ME4)
• #247Rulings
This mana may be used on additional costs to cast the spell, such as Kicker.
(wotc • 2004-10-04)
You can spend the mana on costs on the spell's text.
(wotc • 2004-10-04)
This mana may not be used to pay costs imposed after the spell is initially cast.
(wotc • 2004-10-04)
The mana can't be used to pay Echo costs.
(wotc • 2004-10-04)
Rulings
This mana may be used on additional costs to cast the spell, such as Kicker.
(wotc • 2004-10-04)
You can spend the mana on costs on the spell's text.
(wotc • 2004-10-04)
This mana may not be used to pay costs imposed after the spell is initially cast.
(wotc • 2004-10-04)
The mana can't be used to pay Echo costs.
(wotc • 2004-10-04)