Edgewalker

Creature - Human Cleric 2/2, 1WB (3)
Cleric spells you cast cost {W}{B} less to cast. This effect reduces only the amount of colored mana you pay. (For example, if you cast a Cleric spell with mana cost {1}{W}, it costs {1} to cast.)¹
Illus. Ben Thompson

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: If you have more than one of these on the battlefield, the cost reduction is cumulative.
• 8/1/2008: You apply cost reduction effects after other cost modifiers, so it can reduce additional costs or alternative costs if they include {W} and/or {B}.
• 8/1/2008: If a spell has hybrid mana symbols in its mana cost, you choose which half you will be paying before determining the total cost. If you choose to pay such a cost with {W} or {B}, Edgewalker can reduce that part of the cost.

Format Legality	Legal in Vintage, Legacy, MTGO Classic Banned in Extended, Standard
Printings (1/6)	Scourge (Uncommon)