Rulings

• If a spell is both white and black, you pay {1} less, not {2} less.2004-10-04
• The generic X cost is still considered generic even if there is a requirement that a specific color be used for it. For example, “only black mana can be spent this way”. This distinction is important for effects which reduce the generic portion of a spell’s cost.2004-10-04
• This can lower the cost to zero, but not below zero.2004-10-04
• The effect is cumulative.2004-10-04
• The lower cost is not optional like with some other cost reducers.2004-10-04
• Can never affect the colored part of the cost.2004-10-04
• If this card is sacrificed to pay part of a spell’s cost, the cost reduction still applies.2004-10-04