Edgewalker
Scourge — uncommon
Creature — Human Cleric
Edgewalker rulings:
2008-08-01: You apply cost reduction effects after other cost modifiers, so it can reduce additional costs or alternative costs if they include and/or .
2008-08-01: 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 or , Edgewalker can reduce that part of the cost.
2004-10-04: If you have more than one of these on the battlefield, the cost reduction is cumulative.