Artifact, 2 (2)
Rare
Green spells you cast cost {1} less to cast.
Illus. Sue Ellen Brown

10/4/2004: 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.
10/4/2004: This can lower the cost to zero, but not below zero.
10/4/2004: The effect is cumulative.
10/4/2004: The lower cost is not optional like with some other cost reducers.
10/4/2004: Can never affect the colored part of the cost.
10/4/2004: If this card is sacrificed to pay part of a spell's cost, the cost reduction still applies.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Classic (MTGO)
Legal in Commander